grade 3

It is the smallest particle of a substance.

• ATOM

• MOLECULE

• MATTER

Anything that occupies space and has mass and weight.

• ATOM

• MOLECULE

• MATTER

State of matter that has no definite shape.

• solid

• liquid

• gas

A molecules that are compact and compressed.

• solid

• liquid

• gas

Why does oil float above the water?

• because oil is thick

• because oil is denser than water

• because water is denser than oil

• because water is lighter than oil

Physical properties of matter: It describes the measurement that tells how big or small is an object.

• size

• shape

• color

The heaviness or lightness of a material is called______.

• height

• density

• weight

When you burn a wood, what changes will happen to wood?

• evaporation

• sublimation

• physical change

• chemical change

Sense of organs that tells you the texture of the object.

• touch

• hearing

• seeing

• smell

Part of the eye that sends the transformed light signals and images to the brain for interpretation.

• rod cells

• cone cells

• optic nerve