Free Printable Test 3 Spring 2021 PHY

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.

You and your friends want to determine if fertilizer helps a Barrel Cactus grow a flower (you have a cactus at home, and you really want it to grow a flower). You suspect that fertilizer will help. You buy two cacti. You plant Cactus A in normal soil with no fertilizer and plant the other in a pot with fertilizer. After summer comes and goes, no flower grows. In fact, the cactus with fertilizer died. What is the question you and your friends are investigating?

a)

If the fertilizer caused the cactus to flower.

b)

If the fertilizer caused the cactus to die.

c)

If the fertilizer made the cactus die, but no generalizable conclusions can be drawn.

d)

If the fertilizer will help the cactus produce a flower.

4.

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

a)

35.3

b)

36.2

c)

36.5

d)

36

5.

Darlene places a bolt in the graduated cylinder to find its volume. Its starting volume is 35mL. After she puts the bolt in the graduated cylinder the water level rose to 90 mL. What is the volume of the bolt?

a)

24 cubic centimeters

b)

31 cubic centimeters

c)

45 cubic centimeters

d)

55 cubic centimeters

6.

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

7.

Kelsey is measuring a sample of iodine crystals for an experiment. What is the mass of the iodine and weighing paper?

a)

A) 722.9 grams

b)

A) 722.8 grams

c)

A) 23 grams

d)

A) 23.9 grams

8.

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

9.

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

10.

A student measured the velocities reached by an electric cart over time and recorded the data in the table shown. The student graphs the data, putting time in the horizontal (x) axis and the velocities reached on the vertical (y) axis. Which aspect of the graph reflects the acceleration of the cart?

a)

y-intercept

b)

y-axis scale

c)

slope

d)

midpoint

11.

a)

Graph A

b)

Graph B

c)

Graph C

d)

Graph D

12.

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

13.

a)

Graph A

b)

Graph B

c)

Graph C

d)

Graph D

14.

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

a)

8m

b)

6m

c)

7m

d)

10m

15.

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.

16.

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

17.

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

18.

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.

19.

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

20.

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.

21.

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.

22.

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.

23.

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.

24.

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

25.

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

26.

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

27.

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

28.

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

29.

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

30.

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

31.

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

32.

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

33.

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

34.

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

35.

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

36.

______ research is usually based on numerical measurements.

a)

Ethical

b)

Descriptive

c)

Quantiative

d)

Metric

37.

The responsive condition being observed or measured in an experiment:

a)

Dependent

b)

Independent

c)

Control

d)

Hypothesis

38.

The scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?

a)

The more books students read, the lower their English grade.

b)

The more books students read, the higher their English grade.

c)

The fewer books students read, the higher their English grade.

d)

No relationship exists between the number of books students read and their English grades.

39.

About how many male math teachers were there in 2006?

a)

15

b)

30

c)

35

d)

45

40.

The graph below shows the number of sunny days and rainy days in a city during four months.

Based on the graph,how many more sunny days than rainy days did this city have during the months of April, May, and June?

a)

21

b)

56

c)

26

d)

20

41.

Particles in this state of matter are moving the fastest.

a)

solid

b)

liquid

c)

gas

42.

Particles in this state of matter are moving the slowest.

a)

solid

b)

gas

c)

liquid

43.

This state of matter takes ONLY the shape of its container.

a)

liquid

b)

gas

c)

solid

44.

A variety of elements and compounds that are not chemically combined is called a

a)

mixture

b)

element

c)

compound

d)

pure substance

45.

The molecules in a gas....

a)

are tightly packed

b)

slide past one another in a flowing manner

c)

vibrate, move freely, and spread

d)

are in a regular pattern

46.

Which is an example of a mixture?

a)

Salt Water

b)

Water

c)

Oxygen

d)

Ice

47.

From 30 degrees to 55 degrees, what state of matter is the substance?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

48.

What is increasing as time increases?

a)

state of matter

b)

boiling point

c)

melting point

d)

kinetic energy

49.

Evaporation is when liquid particles absorb enough energy to leave the

a)

surface

b)

bottom

c)

center

d)

liquid throughout

50.

Fluid states are

a)

solid and gas

b)

liquid and gas

c)

solid and liquid

d)

solid, liquid and gas

51.

What state of matter is segment 5?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

52.

The Kelvin temperature scale is based on

a)

potential energy

b)

kinetic energy

c)

Kelvins

d)

water

53.

30 degrees Celcius would equal

a)

273 K

b)

243 K

c)

30 K

d)

303K

54.

What state of matter does the picture best describe?

a)

Solid

b)

Liquid

c)

Gas

55.

Which State of Matter does the diagram best represent?

a)

Solid

b)

Liquid

c)

Gas

56.

In the above diagram, "State of Matter B" is a liquid. This means that it has:

a)

definite shape and volume.

b)

no definite shape or volume.

c)

definite volume, but changing shape.

d)

definite shape, but changing volume.

57.

If the tops were removed from the cylinders, the following would happen:

a)

The solid would fly out of the container

b)

The liquid would fly out of the container.

c)

The gas would fly out of the container.

d)

They ALL would fly out of the container.

58.

What state of matter does this picture show?

a)

Solid

b)

Liquid

c)

Gas

59.

Which state of matter does this picture show?

a)

Solid

b)

Liquid

c)

Gas

60.

What is the best definition of temperature?

a)

How hot or cold something is

b)

A measure of how fast the molecules are moving in a substance

c)

How hot or cold something feels to a person

61.

What is happening in this picture of water boiling?

a)

Molecules are speeding up

b)

Molecules are slowing down

62.

What is happening in this picture of this lake freezing?

a)

Molecules are speeding up

b)

Molecules are slowing down

63.

What is happening to the outside of this water bottle?

a)

Molecules are speeding up

b)

Molecules are slowing down

64.

Particles of a liquid

a)

are tightly packed together and stay in a fixed position.

b)

have no viscosity.

c)

decrease in volume with increasing temperature.

d)

are free to move around one another but still touch.

65.

Particles (molecules) in a ______________________ have more energy than the other states of matter.

a)

gas

b)

solid

c)

liquid

66.

This water is changing from a liquid to a gas via _______.

a)

vaporization

b)

boiling

c)

evaporation

d)

condensation

67.

During the process of condensation, a gas is _______ down to a liquid.

a)

getting

b)

smelling

c)

heating

d)

cooling

68.

Suppose you pour a glass of ice water and set it on the kitchen table. After a few minutes, the outside of the glass will be covered with drops of water. Why did this happen?

a)

Oxygen in the air cooled and condensed onto the cold glass.

b)

Water vapor in the air cooled and condensed onto the cold glass.

c)

Water vapor in the air cooled and evaporated onto the cold glass.

d)

Water seeped through pores in the glass.

69.

Alex noticed that a metal door that sticks on hot days does not stick when it cools off at night. This is because the metal contracts as it cools. The reason for this is that, as the metal cools, the atoms

a)

become smaller and take up less space.

b)

slow down and move closer together.

c)

merge together to form fewer atoms.

d)

speed up and move farther apart.

70.

Between which two points is the solid cooling?

a)

A <---- B

b)

B <----> C

c)

C <---- D

d)

D <----> E

e)

E <---- F

71.

Between which two points is the gas heating up?

a)

A ----> B

b)

B <---- C

c)

C ----> D

d)

D ----> E

e)

E ----> F

72.

Between which two points is the gas condensing?

a)

A <---- B

b)

B <---- C

c)

C <---- D

d)

D <---- E

e)

E <---- F

73.

Between which points is the temperature of the substance remaining constant?

a)

A-B only.

b)

A-B, C-D, E-F

c)

B-C only.

d)

B-C, D-E

74.

A substance's heating curve is shown in the graph. What is its boiling point?

a)

100 C

b)

60 C

c)

80 C

d)

20 C

75.

The graph shows a cooling curve for an unknown substance. What is happening during segment DE?

a)

boiling

b)

condensation

c)

freezing

d)

melting

76.

In which segment is the kinetic energy remaining constant?

a)

A-B

b)

B-C

c)

C-D

d)

E-F

77.

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

a)

Melting

b)

Freezing

c)

Speeding Up

d)

Slowing Down

78.

Where on the graph are phase changes taking place?

a)

1

b)

2

c)

3

d)

4

e)

5

Test 3 Spring 2021 PHY

Total questions: 78

Worksheet time: 3615secs

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