Free Printable Test 2 through matter SLT

1.

1.What question did the scientists who collected this data want to answer?

a)

Are there more earthworms in the soil in the spring or in the fall?

b)

What is the effect of plowing soil on the number of earthworms?

c)

How is the size of earthworms affected by the seasons?

d)

Does plowing soil affect how fast earthworms grow?

2.

A scientist who wants to study the effects of a new fertilizer on plants would probably=

a)

give each experimental group the same amount of the fertilizer.

b)

not worry about measuring the amount of fertilizer used.

c)

include a control group that received no fertilizer.

d)

use different numbers of plants in each group.

3.

Kevin is identifying samples of three unknown metals. One of the properties he will use for identification is the density. The table shows the mass and volume for each sample. Kevin knows that the units of density are grams per cubic centimeter (g/cm³). Calculate the density for sample 3 and find the answer below.

a)

A) 10.49 g/cm³

b)

A) 10.51 g/cm³

c)

A) 10.55 g/cm

d)

A) 10.49 g/cm

4.

Mr. Lee wants to confirm the metal used in a ring with a mass of 26.055 g. The volume of the ring is 1.35 cubic centimeters (cm³). What is the metal composition of the ring?

a)

A) Sterling silver

b)

18-ct white gold

c)

Pure gold

d)

=Platinum

5.

a)

Graph A

b)

Graph B

c)

Graph C

d)

Graph D

6.

What do the data in this graph show?

a)

Unplowed soil has more earthworms than plowed soil.

b)

Plowed soil has more earthworms than unplowed soil.

c)

Plowing of soil has no effect on the number of earthworms.

d)

The number of earthworms cannot be predicted

7.

a)

Graph A

b)

Graph B

c)

Graph C

d)

Graph D

8.

What was the net loss in glacier ice thickness between the years 1970 and 2000?

a)

8m

b)

6m

c)

7m

d)

10m

9.

The graph shows energy production in the United States in 1967 and 2007 for several sources of energy. Which conclusion is supported by the graph?

a)

A) In 1967 more energy was produced in oil than in 2007

b)

A) More energy was produced in 2007 than in 1967 in every category.

c)

A) In 2007, more energy was produced from renewable energy sources than from fossil fuels.

d)

A) People in the United States were more concerned about conserving energy in 1967 than they were in 2007.

10.

Jordan has a mixture of two solids that he has to separate. The solids are small granules that are the same size but different colors. She knows that the silver granules are aluminum and the white granules are salt. Which procedure is the least reliable way to separate the mixture?

a)

Dissolve mixture in a universal solvent and filter. Then evaporate solvent to retrieve the salt.

b)

Dissolve mixture in a universal solvent and filter.

c)

Pass a magnet over the mixture.

d)

Sift the mixture through fine wire mesh.

11.

A mixture of coffee grounds and coffee being poured through filter paper. Which property of the coffee grounds is being used to separate them out from the molecules?

a)

A) Size of particles

b)

A) polarity of the molecules

c)

A) Size of pores in the filter

d)

A) Temperature of the water

12.

Why do we want to test only one independent variable at a time?

a)

Because it is hard to setup a data table with more than one variable

b)

To better identify what is causing the changes

c)

It is what has always been done

d)

It's easier to perform the experiment

13.

In this graph, what is the independent variable?

a)

Population

b)

Day

c)

Species 5

14.

In this graph, what is the dependent variable?

a)

Walla Walla Island

b)

Time

c)

Number of Deer

15.

A mixture that scatters light and will never settle out is called

a)

Homogeneous

b)

Heterogeneous

c)

colloid

d)

suspension

16.

A substances with the same kind of atom throughout is a(an)...

a)

element

b)

molecule

c)

compound

d)

mixture

17.

A substance made from different kinds of atoms chemically combined is a(an)...

a)

element

b)

molecule

c)

compound

d)

mixture

18.

What is the smallest unit of matter?

a)

atom

b)

element

c)

molecule

d)

compound

19.

A substance combined physically, but never chemically is a(an)...

a)

element

b)

molecule

c)

compound

d)

mixture

20.

Italian Salad Dressing is a . . .

a)

heterogeneous mixture

b)

homogeneous mixture

c)

Pure Substance

d)

Compound

21.

Ocean water is a __________ mixture

a)

homogeneous

b)

heterogeneous

c)

pure substance

d)

mixture

22.

A mixture in which 2 liquids are mixed so evenly that it is not possible to see the separate particles

a)

Solute

b)

Solution

c)

Solvent

d)

Suspension

23.

An example of a compound would be:

a)

hydrogen gas (H₂)

b)

heterogeneous

c)

sodium chloride (NaCl)

d)

oxygen gas (O₂)

24.

Which is a compound?

a)

NaOH

b)

Fe

c)

N

d)

He

25.

This picture represents which of the following?

a)

Element

b)

Compound

c)

Mixture

26.

NaHCO₃ is an example of —

a)

an abbreviation

b)

a compound

c)

a mixture

d)

an element

27.

A molecule is created when the same _________ is bonded together. For example: C₁₀

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

28.

Jane Goodall recorded chimpanzees hunt bushpigs, this type of data is called ___

a)

qualitative

b)

quantitative

c)

field study

d)

observation

29.

Jane Goodall recorded 40 chimps living in a community, this is ____ data.

a)

quantitative

b)

qualitative

c)

observation

d)

field study

30.

Carla needs exactly 100.00 grams of sulfur powder for an experiment. The picture shows the mass on the scale so far. She did not zero the scale before starting. Carla knows that the weighing paper weighs 2.10 grams. How much more sulfur powder does Carla need?

a)

A) 4.25 grams

b)

A) 4.35 grams

c)

A) 2.45 grams

d)

A) 3.45 grams

31.

Sun Li investigates the time for 10 grams of table salt to dissolve in 100 milliliters of water. She sets up six beakers, using the information in the table. In which beaker would salt dissolve the slowest?

a)

1

b)

2

c)

3

d)

4

32.

Four student groups pour equal masses of sugar into equal volumes of water. The table lists the differences in conditions for each group. Which group would support the Hypothesis that increased surface area and heat will dissolve solutes faster?

a)

1

b)

2

c)

3

d)

4

33.

The graph shows the temperature changes in a sample of water that is heated steadily from -40°C. Which process is happening in section 2 of the graph?

a)

A) Ice is getting warmer.

b)

A) Ice is melting.

c)

A) Ice is in the solid phase.

d)

A) Ice is changing to vapor and then to a liquid.

34.

Tony found an old iron cannonball that had rust on it. He determined that the iron had been exposed to air and water, which caused the rust. Which statement explains the type of change represented by this reaction?

a)

The reaction represents a chemical change because the rust is just a mixture of water and iron.

b)

The reaction represents a chemical change because the iron oxide has a different melting point than iron.

c)

The reaction represents a chemical change because both the original cannonball and the rusted cannonball are solids.

d)

The reaction represents a chemical change because iron oxide is a new substance formed on the cannonball.

35.

When a Bunsen burner is lit; why is the presence of a flame considered to be an indication of a chemical reaction?

a)

A) A flame indicates a change of energy.

b)

A) A flame indicates a phase change.

c)

A) A flame indicates new physical energy is forming.

d)

A) A flame indicates a change in chemical energy.

36.

In science class, a teacher heats a sample of white wax. As the wax warms, it turns to a clear liquid. When the teacher allows the wax to cool, it hardens again, retaining its original color and mass. Heating the wax is classified as a physical change because it does not

a)

cause a permanent change of energy .

b)

change how atoms are bonded to one another

c)

change the mass in the wick.

d)

involve the destruction of molecules.

37.

Phillip watches a burning log in the fireplace. He makes these observations: I. There is a strong smell of smoke. II. The fire gives off heat.
III. Heat waves appear in the air above the log
IV. Light is emitted where there are flames.
V. Ashes form from the logs.
Which of Phillip’s observations are conclusive evidence that the burning log undergoes chemical changes and not just a physical change?

a)

A) observations I and V only

b)

A) observations II , III, and V only

c)

A) observations I, III, and V only

d)

A) observations I, IV, and V only

38.

What part of the scientific method is illustrated in Step B?

A student noticed that when a dog is cut, the dog periodically licks its wounds. Usually, after a few days, the wound begins to heal without ever showing signs of infection.

The following steps outline the student’s line of reasoning

A. I wonder why the dog's wound doesn’t become infected?

B. The dog’s saliva must prevent the growth of infection-causing bacteria.

C. I’ll obtain a bacterial culture and grow the same kind of bacteria in two identical culture dishes. Once the bacteria start growing, I’ll add dog saliva to only one of the dishes and leave the other alone. I’ll cover both dishes. Then I’ll observe what happens each day for a week.

D. Even after adding the dog saliva to one of the dishes, the bacteria continued to grow in both dishes over the course of the week. However, the bacteria in the treated dish grew more slowly than the bacteria in the untreated dish.

E. I think I'll try something else. I’ll start with two identical culture dishes, as before, and use the same kind of bacteria in each dish, but this time I’ll create one dish with dog saliva before I add the bacteria. I’ll observe what happens each day for a week.

a)

Conclusion

b)

Data

c)

Hypothesis(claim)

d)

Problem

39.

Why were both dishes covered?

A student noticed that when a dog is cut, the dog periodically licks its wounds. Usually, after a few days, the wound begins to heal without ever showing signs of infection.

The following steps outline the student’s line of reasoning

A. I wonder why the dog's wound doesn’t become infected?

B. The dog’s saliva must prevent the growth of infection-causing bacteria.

C. I’ll obtain a bacterial culture and grow the same kind of bacteria in two identical culture dishes. Once the bacteria start growing, I’ll add dog saliva to only one of the dishes and leave the other alone. I’ll cover both dishes. Then I’ll observe what happens each day for a week.

D. Even after adding the dog saliva to one of the dishes, the bacteria continued to grow in both dishes over the course of the week. However, the bacteria in the treated dish grew more slowly than the bacteria in the untreated dish.

E. I think I'll try something else. I’ll start with two identical culture dishes, as before, and use the same kind of bacteria in each dish, but this time I’ll create one dish with dog saliva before I add the bacteria. I’ll observe what happens each day for a week.

a)

To avoid the spread of the infection

b)

To avoid contamination (other bateria getting on the dishes)

c)

To compare the growth

d)

All of the answers are correct

40.

What is the dependent variable (response you are looking for) in this experient?

A student noticed that when a dog is cut, the dog periodically licks its wounds. Usually, after a few days, the wound begins to heal without ever showing signs of infection.

The following steps outline the student’s line of reasoning

A. I wonder why the dog's wound doesn’t become infected?

B. The dog’s saliva must prevent the growth of infection-causing bacteria.

C. I’ll obtain a bacterial culture and grow the same kind of bacteria in two identical culture dishes. Once the bacteria start growing, I’ll add dog saliva to only one of the dishes and leave the other alone. I’ll cover both dishes. Then I’ll observe what happens each day for a week.

D. Even after adding the dog saliva to one of the dishes, the bacteria continued to grow in both dishes over the course of the week. However, the bacteria in the treated dish grew more slowly than the bacteria in the untreated dish.

E. I think I'll try something else. I’ll start with two identical culture dishes, as before, and use the same kind of bacteria in each dish, but this time I’ll create one dish with dog saliva before I add the bacteria. I’ll observe what happens each day for a week.

a)

Dog saliva

b)

Bacterial growth

c)

Culture Dish

d)

Dog's wond

41.

What is the Independent variable (Variable you can change) in this experient?

A student noticed that when a dog is cut, the dog periodically licks its wounds. Usually, after a few days, the wound begins to heal without ever showing signs of infection.

The following steps outline the student’s line of reasoning

A. I wonder why the dog's wound doesn’t become infected?

B. The dog’s saliva must prevent the growth of infection-causing bacteria.

C. I’ll obtain a bacterial culture and grow the same kind of bacteria in two identical culture dishes. Once the bacteria start growing, I’ll add dog saliva to only one of the dishes and leave the other alone. I’ll cover both dishes. Then I’ll observe what happens each day for a week.

D. Even after adding the dog saliva to one of the dishes, the bacteria continued to grow in both dishes over the course of the week. However, the bacteria in the treated dish grew more slowly than the bacteria in the untreated dish.

E. I think I'll try something else. I’ll start with two identical culture dishes, as before, and use the same kind of bacteria in each dish, but this time I’ll create one dish with dog saliva before I add the bacteria. I’ll observe what happens each day for a week.

a)

Dog saliva

b)

Bacterial growth

c)

Culture Dish

d)

Dog's wond

42.

What is the Control Group in the following experiment?

A student noticed that when a dog is cut, the dog periodically licks its wounds. Usually, after a few days, the wound begins to heal without ever showing signs of infection.

The following steps outline the student’s line of reasoning

A. I wonder why the dog's wound doesn’t become infected?

B. The dog’s saliva must prevent the growth of infection-causing bacteria.

C. I’ll obtain a bacterial culture and grow the same kind of bacteria in two identical culture dishes. Once the bacteria start growing, I’ll add dog saliva to only one of the dishes and leave the other alone. I’ll cover both dishes. Then I’ll observe what happens each day for a week.

D. Even after adding the dog saliva to one of the dishes, the bacteria continued to grow in both dishes over the course of the week. However, the bacteria in the treated dish grew more slowly than the bacteria in the untreated dish.

E. I think I'll try something else. I’ll start with two identical culture dishes, as before, and use the same kind of bacteria in each dish, but this time I’ll create one dish with dog saliva before I add the bacteria. I’ll observe what happens each day for a week.

a)

Dog saliva

b)

Bacterial growth

c)

Culture Dish without saliva

d)

Culture dish with slaiva

43.

According to the conclusion, of the following experiment, the hypothesis can be described as being?

A student noticed that when a dog is cut, the dog periodically licks its wounds. Usually, after a few days, the wound begins to heal without ever showing signs of infection.

The following steps outline the student’s line of reasoning

A. I wonder why the dog's wound doesn’t become infected?

B. The dog’s saliva must prevent the growth of infection-causing bacteria.

C. I’ll obtain a bacterial culture and grow the same kind of bacteria in two identical culture dishes. Once the bacteria start growing, I’ll add dog saliva to only one of the dishes and leave the other alone. I’ll cover both dishes. Then I’ll observe what happens each day for a week.

D. Even after adding the dog saliva to one of the dishes, the bacteria continued to grow in both dishes over the course of the week. However, the bacteria in the treated dish grew more slowly than the bacteria in the untreated dish.

E. I think I'll try something else. I’ll start with two identical culture dishes, as before, and use the same kind of bacteria in each dish, but this time I’ll create one dish with dog saliva before I add the bacteria. I’ll observe what happens each day for a week.

a)

Valid (supported)

b)

Invalid (unspuported)

c)

Pending

d)

Descriptive

44.

In the following experiment, what would be the Independent variable? (Variable you change)

-One tank of goldfish is fed the normal amount which is once per day;

-a second tank is fed twice a day, and a third tank is fed four times a day during a six-week study.

-The fishes’ body fat is recorded daily.

- All of the tanks are the same size, have the same amount of water and are the same temperature. The fish are all fed Fish Food Tropicana.

a)

Fish body fat

b)

Fish food

c)

Group of fish fed the Normal Amount

d)

Groups of fish fed more than the normal amount

45.

In the following experiment, what would be the Dependent variable? (response your looking for)

-One tank of goldfish is fed the normal amount which is once per day;

-a second tank is fed twice a day, and a third tank is fed four times a day during a six-week study.

-The fishes’ body fat is recorded daily.

- All of the tanks are the same size, have the same amount of water and are the same temperature. The fish are all fed Fish Food Tropicana.

a)

Fish body fat

b)

Fish food

c)

Group of fish fed the Normal Amount

d)

Groups of fish fed more than the normal amount

46.

In the following experiment, what would be the Control Group?

-One tank of goldfish is fed the normal amount which is once per day;

-a second tank is fed twice a day, and a third tank is fed four times a day during a six-week study.

-The fishes’ body fat is recorded daily.

- All of the tanks are the same size, have the same amount of water and are the same temperature. The fish are all fed Fish Food Tropicana.

a)

Fish body fat

b)

Fish food

c)

Group of fish fed the Normal Amount

d)

Groups of fish fed more than the normal amount

47.

In the following experiment, what would be the Experimental Group?

-One tank of goldfish is fed the normal amount which is once per day;

-a second tank is fed twice a day, and a third tank is fed four times a day during a six-week study.

-The fishes’ body fat is recorded daily.

- All of the tanks are the same size, have the same amount of water and are the same temperature. The fish are all fed Fish Food Tropicana.

a)

Fish body fat

b)

Fish food

c)

Group of fish fed the Normal Amount

d)

Groups of fish fed more than the normal amount

48.

In the following experiment, what would be the constant variables? (choose all that apply)

-One tank of goldfish is fed the normal amount which is once per day;

-a second tank is fed twice a day, and a third tank is fed four times a day during a six-week study.

-The fishes’ body fat is recorded daily.

- All of the tanks are the same size, have the same amount of water and are the same temperature. The fish are all fed Fish Food Tropicana.

a)

Fish body fat

b)

Fish food brand

c)

Group of fish fed the Normal Amount

d)

Size of fish and tank environment

e)

Temperature of water

49.

A student wanted to test some objects to see if they would sink or float. What conclusion can be made from her investigation?

a)

The marble is less dense than the water and the mineral oil

b)

The marble is more dense that the water and the mineral oil

c)

The block is less dense than the water and more dense than the mineral oil

d)

The block is more dense than the water and less dense than the mineral oil

50.

Students investigated 4 different items and recorded their observations in a data table.

What physical property can be used to classify these objects into two different groups?

a)

Color

b)

State of matter

c)

Magnetism

d)

Solubility

51.

Which of the following would be the best method to separate small pieces of wood and small pieces of metal placed in a beaker?

a)

Heat the beaker on a hot plate

b)

Pour the contents into a strainer/filter

c)

Let the contents set for a day to settle out

d)

Add water to the beaker to see which one sinks and which one floats

52.

A teacher gave her students a mixture to separate. It was made of equal parts salt and sand. The salt grains and sand were the same size. What would be the easiest way for the students to separate this mixture?

a)

Add water to the mixture, stir, then filter the sand out of the water

b)

Use a strainer with a fine wire screen to remove the sand

c)

Use tweezers to remove the sand

d)

Run a magnet through the mixture to attract the sand

53.

Which of the following will happen when a mixture of salt and water are left for a few days?

a)

the water will evaporate

b)

the salt will evaporate with the water

c)

nothing will happen. The salt and water will remain in the cup

d)

once the water evaporates the salt will be left in the container

54.

Students put 2 ice cubes on separate plates. One ice cube had a mass of 20 grams. The other had a mass 0f 30 grams. Which result would be the same for both ice cubes in this investigation?

a)

The time it took each ice cube to melt completely

b)

The temperature at which each ice cube melted

c)

The amount of liquid produced on each plate

d)

The total volume of each ice cube

55.

At higher temperatures

a)

particles in an object have less energy

b)

particles in an object move faster

c)

a gas contracts

56.

A collection of charged particles that respond strongly and collectively to electromagnetic fields. A ball of lightening would be an example.

a)

solid

b)

liquid

c)

gas

d)

plasma

57.

A substance that has a changing shape, a fixed volume, flows, but cannot be squashed, is a...

a)

solid

b)

liquid

c)

gas

d)

plasma

58.

What state/phase is the object likely from points A to B?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

59.

What is happening to the particles in the substance between points A and B?

a)

Melting

b)

Freezing

c)

Speeding Up

d)

Slowing Down

60.

Where on the graph are phase changes taking place?

a)

1

b)

2

c)

3

d)

4

e)

5

61.

Which of the following terms identifies the change from a liquid to gas?

a)

Vaporization

b)

Condensation

c)

Deposition

d)

Sublimation

62.

You are drinking a cold drink on a hot day when you notice LIQUID water has collected on the can. Which answer BEST explains what PHASE CHANGE has occurred AND how the molecule ARRANGEMENT has changed?

a)

The PHASE CHANGE that has occurred is CONDENSATION and the molecule ARRANGEMENT has become CLOSER.

b)

The PHASE CHANGE that has occurred is FREEZING and the molecule ARRANGEMENT has become CLOSER.

c)

The PHASE CHANGE that has occurred is EVAPORATION and the molecule MOVEMENT has become FASTER.

63.

Which answer BEST explain what molecule ARRANGEMENT tells us?

a)

Molecule ARRANGEMENT tells us how FAST or SLOW the atoms or molecules are moving.

b)

Molecule ARRANGEMENT tells us how CLOSE or FAR APART the atoms or molecules are to one another.

c)

Molecule ARRANGEMENT tells us how BIG or SMALL the atoms or molecules are compared to one another.

64.

Which answer BEST explains what molecule MOVEMENT tells us?

a)

Molecule MOVEMENT tells us how FAST or SLOW the atoms or molecules are moving.

b)

Molecule MOVEMENT tells us how CLOSE or FAR APART the atoms or molecules are to one another.

c)

Molecule MOVEMENT tells us how BIG or SMALL the atoms or molecules are compared to one another.

65.

Your teacher asks your group to discuss HOW molecule MOVEMENT and molecule ARRANGEMENT in a LIQUID is DIFFERENT than in a SOLID. Each of your group members shares their answer. Decide who has the BEST answer.

a)

Zachary says molecule MOVEMENT in a LIQUID is SLOWER and the molecule ARRANGEMENT is FARTHER APART than a SOLID.

b)

Miguel says molecule MOVEMENT in a LIQUID is SLOWER and the molecule ARRANGEMENT is CLOSER than a SOLID.

c)

Julian says molecule MOVEMENT in a LIQUID is FASTER and the molecule ARRANGEMENT is FARTHER APART than a SOLID.

66.

Your teacher asks your group to discuss HOW molecule MOVEMENT and molecule ARRANGEMENT in a GAS is DIFFERENT than in a LIQUID. Each of your group members shares their answer. Decide who has the BEST answer.

a)

Villette says molecule MOVEMENT in a GAS is FASTER and the molecule ARRANGEMENT is FARTHER APART than a LIQUID.

b)

Vivian says molecule MOVEMENT in a GAS is SLOWER and the molecule ARRANGEMENT is FARTHER APART than a LIQUID.

c)

Griselda says molecule MOVEMENT in a GAS is FASTER and the molecule ARRANGEMENT is CLOSER than a LIQUID.

67.

Which of the following is a sign that a chemical reaction has occurred?

a)

change in shape

b)

melting

c)

formation of a gas

d)

dissolving

68.

Photosynthesis is an example of a

a)

physical change

b)

chemical change

69.

Which of the following does the discoloration of a coin describe?

a)

Chemical Change

b)

Physical Change

c)

None of the above

d)

Both

70.

Which of the following is NOT a physical property?

a)

breaking a window

b)

color

c)

denisty

d)

freezing point

71.

Jordan has a mixture of two solids that he has to separate. The solids are small granules that are the same size but different colors. She knows that the silver granules are aluminum and the white granules are salt. Which procedure is the least reliable way to separate the mixture?

a)

Dissolve mixture in a universal solvent and filter. Then evaporate solvent to retrieve the salt.

b)

Dissolve mixture in a universal solvent and filter.

c)

Pass a magnet over the mixture.

d)

Sift the mixture through fine wire mesh.

72.

Tony found an old iron cannonball that had rust on it. He determined that the iron had been exposed to air and water, which caused the rust. Which statement explains the type of change represented by this reaction?

a)

The reaction represents a chemical change because the rust is just a mixture of water and iron.

b)

The reaction represents a chemical change because the iron oxide has a different melting point than iron.

c)

The reaction represents a chemical change because both the original cannonball and the rusted cannonball are solids.

d)

The reaction represents a chemical change because iron oxide is a new substance formed on the cannonball.

73.

A measure of how much mass is contained in a given unit of volume.

a)

mass

b)

density

c)

volume

d)

matter

74.

What is the precise reading (in milliliters) of the liquid volume?

a)

65

b)

66

c)

67

d)

68

75.

Darlene places a bolt in the graduated cylinder to find its volume. Its starting volume is 45.5mL. After she puts the bolt in the graduated cylinder the water level rose to 65.5mL. What is the volume of the bolt?

a)

10 cubic centimeters

b)

19.5 cubic centimeters

c)

20.5 cubic centimeters

d)

21 cubic centimeters

e)

20

Test 2 through matter SLT

Total questions: 75

Worksheet time: 53mins

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