SCIENCE 7 QUARTER 1

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

• flammable

• corrosive

• slippery when wet

• poisonous

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

• graduated cylinder

• watch glass

• tripod

• funnel

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

• uncontrolled experiment

• dependent variable

• independent variable

• controlled experiment

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

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

• Solid matter does not have a fixed position.

• Solid matter has no definite shape.

• Molecules of a solid matter are freely moving.

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

• ductility

• conductivity

• malleability

• hardness

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

• ceramic

• diamond

• rubber band

• crystal

Which of the following is NOT TRUE about liquid matter?

• They don’t have a fixed shape

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

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

• They cannot maintain their form

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

• heterogenous mixture

• homogenous mixture

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

• filtration

• sieving

• evaporation

• distillation

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

• filtration

• sieving

• distillation

• evaporation