Elias Term 2 Science Revision

What does the symbol 'H' represent on the periodic table?

• Helium

• Hydrogen

• Oxygen

• Heat

What is a compound?

• A mix of atoms not bonded

• A single type of atom

• A chemically bonded substance made of two or more elements

• A physical mixture of gases

What type of change occurs when chocolate melts and hardens again?

• Chemical change

• Atomic change

• Molecular change

• Physical Change

When chocolate burns and smells different, what kind of change has occurred?

• Physical change

• Reversible change

• Chemical change

• Freezing

What charge does a proton carry?

• Negative

• Neutral

• Positive

• No charge

What charge does a electron carry?

• Negative

• Neutral

• Positive

• No charge

Which particles are found in the nucleus of an atom?

• Electrons and neutrons

• Protons and neutrons

• Protons and electrons

• Only neutrons

Which word best describes the texture of Play Doh?

• Smooth and doughy

• Hard and brittle

• Sharp and metallic

• Glossy and slick

What does it mean if a material is non-metallic?

• It conducts electricity

• It is magnetic

• It does not have the properties of a metal

• It is always shiny and hard

What physical property would best describe a chalk stick?

• Hard, shiny, heavy

• Rough, dusty, light

• Smooth, flexible, dense

• Elastic, soft, magnetic