Mammals, including humans, drink milk for _____

(a)  

• For nutrition and growth
• For hydration during exercise
• To enhance skin texture
• As a substitute for water

What happens when water boils at 100 degrees Celsius?

• It turns into ice.

• It turns into water vapour.

• It turns into a solid.

• It turns into a liquid.

The term for when a gas changes into a liquid is (a)   .

• Evaporate
• Dissolve
• Condense
• Freeze

What is a material called that does not allow heat or cold to pass through?

• Soluble

• Insulator

• Solution

• Suspension

Match the following states of matter with their descriptions.

• Flows to the bottom of a container and takes its shape

• Liquid

• Has a definite shape and volume

• Solid

• Fills the entire volume of a container

• Water vapour

• Gaseous state of water

• Gas

What is a permanent or chemical change called?

• Reversible change

• Irreversible change

• Dissolve

• Melt

The term for when a solid is heated and changes into a liquid is _____.

What is a mixture that contains a dissolved material called?

• Suspension

• Solution

• Insulator

• Soluble

What happens to the particles in a solid?

• They have strong bonds and a fixed shape.

• They have weak bonds and can change shape.

• They have really weak bonds and move freely.

• They have no bonds and disappear.

The boiling point of water is (a)  

• 0°C

• 50°C

• 100°C

• 200°C