Free Printable SUMMATIVE TEST SCIENCE 7

1.

Which of the following statements relates science to technology?

a)

Yeasts reproduces by budding.

b)

Yeasts produces froth during fermentation.

c)

Yeasts is a yellowish gray fungus.

d)

Yeasts breakdown the sugar in the fruit juices to produce wine.

2.

Which of the following is NOT supported by any scientific knowledge?

a)

An object thrown upward naturally falls down.

b)

Soaking wood in salty water is a good practice.

c)

Knocking on wood prevents bad luck.

d)

Light travels faster than sound.

3.

Which of the following research questions can you answer by doing experiment?

a)

Why is the same side of the moon seen from the Earth at all times?

b)

What is the average number of children in Filipino families?

c)

Which soil type (sand, clay, and loam) can hold the greatest amount of water?

d)

Up to what age do turtles live?

4.

Which of the following hypothesis CANNOT be tested?

a)

Friction between two surfaces may be reduced by the use of lubricants.

b)

Materials with a density lower than that of water will float on water.

c)

A violent volcanic eruption is God’s curse.

d)

Different amount of salt that the rice variety can hold.

5.

Which of the following is dangerous to do inside the science laboratory?

a)

To identify a gas released by a chemical reaction in the beaker.

b)

In diluting an acid, the students slowly adds the acid to the water.

c)

The students keep alcohol and other flammable liquids away from the Bunsen burner.

d)

The students reads the instruction very well before performing laboratory activity.

6.

Which of the following measurements has three significant figures?

a)

52 feet

b)

6.1 Km

c)

58.714 lb.

d)

0.00323Kg

7.

Which of the following is a qualitative observation?

a)

The car race was finished in 15 minutes.

b)

Kokey’s height is 3 meters only.

c)

Cham’s body heat is not due to fever.

d)

The Earth rotates in its axis 24 hours a day.

8.

Which of the following scientific skills is used in sorting things into group using criterion?

a)

Classifying

b)

Inferring

c)

Observing

d)

Analyzing

9.

How many weeks are there in 265 days?

a)

52.14 Weeks

b)

48 Weeks

c)

91.25 Weeks

d)

60 Weeks

10.

Which of the following is a correct metric equivalent?

a)

1000L = 1mL

b)

1000mg = 1g

c)

1000Kg = 1g

d)

1000cm = 1 m

11.

Which of the following observation shows that seawater is a mixture and not a pure substance?

a)

It has uniform properties all throughout.

b)

When seawater is heated, it boils at a fixed temperature.

c)

The temperature at which sea freezes is lower than that at which pure water freezes.

d)

When seawater is heated such as water evaporates, a solid residue is left behind.

12.

Which of the following observations indicates the water is a compound, not an element?

a)

The smallest particle of water is identical to all the other water particles in a glass of water.

b)

Passing a current through water yields hydrogen and oxygen gas.

c)

Water has a homogeneous appearance.

d)

Pure water boils at temperature of 100 degree Celsius.

13.

When a small amount of iodine is dissolved in alcohol, what part of the solution is alcohol?

a)

Solution

b)

Solute

c)

Solvent

d)

Distillate

14.

Which of the following should you do if you want to dissolve more table salt in water?

a)

Increase the pressure.

b)

Increase the temperature of water.

c)

Increase the amount of salt.

d)

Increase the size of the container.

15.

Which of the following pH values indicates a solution with a highest concentration of hydrogen ions?

a)

pH = 14

b)

pH = 11

c)

pH = 5

d)

pH = 7

16.

Which of the following elements is the only liquid metal at ordinary room temperature?

a)

Gold

b)

Silver

c)

Mercury

d)

Bromine

17.

You are asked by your teacher to prepare a heterogeneous mixture from the condiment at home as your assignment. Which of the following set up would you choose?

a)

Soy sauce and vinegar

b)

Fish sauce and vinegar

c)

Pepper and vinegar

d)

Vinegar and fish paste

18.

Billy accidentally broke the clinical thermometer in his house. What is the physical state of the substance that spilled on the floor?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

19.

Which of these characteristics is a nonmetal property?

a)

Luster

b)

Brittle

c)

Malleable

d)

Ductile

20.

Which of the following solutions would turn blue litmus paper to red?

a)

Soap

b)

Detergent

c)

Soft Drinks

d)

Bleach

21.

Which of the following is NOT an example of a chemical change of a matter?

a)

Melted Ice Cream

b)

Photosynthesis

c)

Tarnishing of Silverwares

d)

Young to ripe banana

22.

Which of the following metal is practical to use in making electrical wires?

a)

Copper

b)

Gold

c)

Silver

d)

Tin

23.

Which of the following substances CANNOT be dissolved in water?

a)

Wax

b)

Sugar

c)

Salt

d)

Soap

24.

One of the substances given is NOT the likes of water. Which one is it?

a)

Cooking Oil

b)

Soy Sauce

c)

Vinegar

d)

Choclate

25.

What kind of matter that has many components and can be separated by physical means?

a)

Mixture

b)

Compound

c)

Homogeneous Mixture

d)

Element

26.

Which of the following is a homogeneous mixture?

a)

Ice and Water

b)

Alcohol

c)

Pizza

d)

Fruit Salad

27.

What type of solution that has an equal amount of solvent and solution?

a)

Saturated

b)

Unsaturated

c)

Supersaturated

d)

Concentrated

28.

Which of the following scientific skills refers to the interpretation of the things observed?

a)

Analysis

b)

Observation

c)

Inference

d)

Communication

29.

In what form of matter will acids and bases exhibit their acidic and basic properties?

a)

Solution

b)

Mixture

c)

Compound

d)

All of the above

30.

What type of solution that has solute less than the maximum amount the solvent can dissolved?

a)

Saturated

b)

Unsaturated

c)

Supersaturated

d)

Concentrated

31.

Identify the element symbol of Potassium.

a)

Po

b)

P

c)

K

d)

W

32.

Identify the element name that has Ag element symbol.

a)

Silver

b)

Gold

c)

Arsenic

d)

Astatine

33.

Which of the following is an inference?

a)

The ice dissolve quickly in hot temperature.

b)

Starch is formed on the leaves of the trees.

c)

The viand is delicious.

d)

The birds are flying.

34.

Which of the following refers to anything that occupies space and has mass?

a)

Matter

b)

Volume

c)

Density

d)

Element

35.

Which of the following refers to a mixture of two components where the components are not identifiable?

a)

Homogeneous

b)

Heterogeneous

c)

Suspension

d)

Colloids

36.

Which of the following families of elements refers to the salt – producing group?

a)

Alkali

b)

Alkaline

c)

Halogens

d)

Noble

37.

Which of the following human body elemental composition is responsible for the structural materials in bones and teeth and also in protein regulation and muscle contraction?

a)

Calcium

b)

Chlorine

c)

Oxygen

d)

Carbon

38.

Which of the following elements is used as primary energy carrier in cells?

a)

Potassium

b)

Phosphorous

c)

Oxygen

d)

Carbon

39.

A solution is prepared by dissolving 75 g of fruit juice powder in 750 g of water. Calculate the mass of solution.

a)

75g

b)

750g

c)

825g

d)

675g

40.

A solution is made up of 10 mL of ethyl alcohol and 25 mL of water. What is the volume percent of ethyl alcohol in the solution?

a)

28.57%

b)

40%

c)

250%

d)

350%

41.

How many kinds of atoms per particle in Sodium hydroxide (NaOH)?

a)

4

b)

3

c)

2

d)

1

42.

Which of the following science laboratory instruments does NOT use for liquid solutions?

a)

Flask

b)

Graduated cylinder

c)

Thermometer

d)

Beaker

43.

Which of the following solution does NOT belong to the group?

a)

Citrus fruits

b)

laxative

c)

Soft drinks

d)

Vinegar

44.

Which of the following is NOT the factor affecting solubility?

a)

Container

b)

Particle size

c)

Stirring

d)

Temperature

45.

Which of the following properties of matter is NOT a chemical property?

a)

Elasticity

b)

Reactivity

c)

Toxicity

d)

Flammability

46.

Plasma matter has a capability to conduct electricity and can respond to magnetic field. Which of the following matter is NOT an example of plasma?

a)

Lightning

b)

Water

c)

Welding arc

d)

neon signs

47.

Which of the following separating methods are used when dissolved substances are colored such as inks, food coloring and plant dyes?

a)

Distillation

b)

Chromatography

c)

Evaporation

d)

Sieving

48.

What part of product label which contains the ways or procedures on how to use the product?

a)

Ingredients

b)

Caution

c)

Direction

d)

Storage

49.

Which of the following special property of gas?

a)

Compressibility

b)

Elasticity

c)

Luster

d)

Fluidity

50.

Which of these steps must come first?

a)

Performing the experiment.

b)

Forming hypothesis

c)

Making observation

d)

Predicting the result

SUMMATIVE TEST SCIENCE 7

Total questions: 50

Worksheet time: 25mins

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