SCIENCE 5 QUARTER 1

What is a property that helps us determine if a material is useful or harmful?

• Density

• Toxicity

• Texture

• Flexibility

Which of the following is a useful property of plastic?

• Non-biodegradable

• Flexible

• Flammable

• Brittle

What material is harmful when exposed to high heat?

• Wood

• Metal

• Plastic

• Glass

Oxygen is essential for:

• Rusting

• Melting

• Hardening

• Freezing

What happens to iron when it is exposed to oxygen and moisture over time?

• It melts

• It becomes brittle

• It rusts

• It solidifies

Which of the following materials undergoes a physical change when heated?

• Ice

• Wood

• Glass

• Metal

Which material is recyclable?

• Aluminum

• Styrofoam

• Cement

• Paint

What happens when heat is applied to solid wax?

• It becomes solid

• It melts

• It expands

• It contracts

Which condition can cause iron to rust more quickly?

• Lack of oxygen

• Low temperature

• Exposure to water and air

• Dry environment

When a candle burns, which property is being changed by heat?

• Color

• State of matter

• Shape

• Size