Elements Quiz 8th Grade

What is a physical change?

• Burning wood

• Melting ice

• Rusting iron

• Baking a cake

What is a chemical change?

• Freezing water

• Dissolving sugar

• Burning paper

• Cutting paper

Tags

NGSS.MS-PS1-2

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What is the most common element in the Earth's crust?

• Oxygen

• Hydrogen

• Carbon

• Nitrogen

Tags

NGSS.MS-PS1-1

Name two elements that belong to the same group.

• Sodium and Potassium

• Carbon and Oxygen

• Helium and Neon

• Iron and Copper

What metal do engineers use in order to make aircraft and spacecraft lighter and why?

• Iron, because it is strong

• Aluminum, because it is lightweight

• Gold, because it is malleable

• Copper, because it is conductive

Tags

NGSS.MS-ETS1-1

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What is an example of a synthetic material?

• Cotton

• Wool

• Nylon

• Silk

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NGSS.MS-PS1-3

What property of lead makes it useful to protect people from harmful radiation?

• Conductivity

• Density

• Malleability

• Transparency

What is an element that is not likely to react with any other elements?

• Helium

• Oxygen

• Sodium

• Chlorine

What happens to the boiling point and freezing point of pure water when salt is added?

• Both increase

• Both decrease

• Boiling point increases, freezing point decreases

• Boiling point decreases, freezing point increases

Tags

NGSS.MS-PS1-4

What is the basic building block of matter?

• Molecules

• Atoms

• Compounds

• Mixtures

Tags

NGSS.MS-PS1-1