UNIT 5

What is density?

Answer explanation

It's the property that indicates how much mass is concentrated in an object.

The relationship between the mass of an object and its volume.

All types of matter have two general properties, what are them?

• Colour

• Volume

• Mass

• Density

What are changes of the state of water?

• Liquation

• Melting

• Gas

• Condensation

• Evaporation

Which of the following are natural materials?

• Leather

• Paper

• Wood

• Glass

The upward force that makes your body feel lighter in the swimming pool is called

When does an object float?

• Their density is higher than the density of the water.

• Their density is the same as the density of the water

• Their density is lower than the density of the water

They are made from two or more materials.

• Plastics

• Mixtures

• Composites

• Natural materials

It is a homogeneous mixture of water, sugar and other ingredients.

Homogeneous mixture where one substance dissolves in another

• Colloid

• Alloy

• Mixture

• Solution

Chemical change which takes plave when a substance combines with oxygen