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SCIENCE 7 QUARTER 1

Total questions: 25

Worksheet time: 9mins

Name
Class
Date
1.

What is the meaning of the laboratory sign shown on the left?

a)

flammable

b)

corrosive

c)

slippery when wet

d)

poisonous

2.

This is a primary measuring tool for the volume of a liquid.

a)

graduated cylinder

b)

watch glass

c)

tripod

d)

funnel

3.

This is designed to test if a specific change in the condition you hypothesize would cause a change to another condition

a)

uncontrolled experiment

b)

dependent variable

c)

independent variable

d)

controlled experiment

4.

Which of the following is a characteristic of a solid matter.

a)

Molecules of a solid matter are compact and have a strong vibration.

b)

Solid matter does not have a fixed position.

c)

Solid matter has no definite shape.

d)

Molecules of a solid matter are freely moving.

5.

It is a property related to a mineral’s resistance to being scratched.

a)

ductility

b)

conductivity

c)

malleability

d)

hardness

6.

7. Which of the following is an example of an amorphous solid?

a)

ceramic

b)

diamond

c)

rubber band

d)

crystal

7.

Which of the following is NOT TRUE about liquid matter?

a)

They don’t have a fixed shape

b)

They fill the container completely as they have a greater density than gases.

c)

They cannot be compressed easily as the particles are relatively close to each other.

d)

They cannot maintain their form

8.

A mixture that is formed if the composition of a material is not completely uniform.

a)

heterogenous mixture

b)

homogenous mixture

9.

This process is used to separate particles of different sizes passing through a sieve.

a)

filtration

b)

sieving

c)

evaporation

d)

distillation

10.

This is used in separating a soluble solid from a liquid by the use of heat.

a)

filtration

b)

sieving

c)

distillation

d)

evaporation

11.

This is a process of separating liquids from a solution.

a)

distillation

b)

decantation

c)

filtration

d)

evaporation

12.

If a substance  dissolves readily in a solvent, it is called ____________.

a)

soluble

b)

insoluble

13.

This type of solution contains the maximum amount of solute that the solvent can dissolve at a given temperature.

a)

unsaturated solution

b)

saturated solution

c)

supersaturated solution

14.

It is the continuous movement of small suspended particles in water.

a)

Tyndall Effect

b)

Brownian Movement

c)

Adsorption

15.

He studied the diffusion of light by large molecules and dust.

a)

John Tyndall

b)

Robert Brown

16.

It is the ability of an element to be burnt easily or undergo combustion

a)

flammability

b)

toxicity

c)

acidity

d)

oxidation

17.

Which of the following is correctly matched?

a)

gold: element; silver: compound

b)

oxygen: element; water: compound

c)

sugar: element salt; compound

d)

water: element; hydrogen: compound

18.

Which of the following is the simplest form of a substance?

a)

element

b)

compound

19.

Magnesium is a/an ____________.

a)

element

b)

compound

20.

Sugar is a/an ___________.

a)

element

b)

compound

21.

Its pH level is less than 7,

a)

acid

b)

base

22.

Vinegar is a/an _________.

a)

acid

b)

base

23.

Aluminum hydroxide is a/an _________.

a)

acid

b)

base

24.

It turns red litmus paper into blue litmus paper.

a)

acid

b)

base

c)

a

25.

It is a numerical value obtained from measuring tools such as a ruler, thermometer, and balance.

a)

qualitative observation

b)

quantitative observation

c)

data

d)

hypothesis