grade 7 chemistry quiz

how high is the attraction force for a solid

• very high

• high

• weak

which 2 are almost the same/the same?

• boiling

• condensation

• evaporation

• melting

• freezing

what is the process of solid turning to liquid and liquid to gas?(use---as arrows)

subliming is the process where solid turns to gas, or gas turns to liquid, without becoming a liquid.

• TRUE

• FALSE

what is an element?

which ones are physical properties of metals?

• strong

• soft

• good conductor of electricity

• hard

• bad conductor of heat

which ones are non-metal elements?

• oxygen

• iron

• carbon

• copper

• hydrogen

what is an alloy?

what is a material?

which is a plastic material?

• not reusable shopping bags

• a blanket

• clothing

• pillows

• a house