What do metals react with to form metal oxides?

• Hydrogen

• Oxygen

• Carbon dioxide

• Water

When planning an investigation why do we control the variable?

• to write a conclusion.

• to describe the pattern in your results.

• to collect data about hazards.

• to make the investigation fair.

When making observations and presenting results why do we uses secondary sources?

• to write a conclusion.

• to describe the pattern in your results.

• to collect data about hazards.

• to make the investigation fair.

All metals do not burn in the air.

• True

• False

What is the color of the flame when a small piece of magnesium ribbon is burned?

• bright, yellow flame

• bright, red flame

• bright, blue flame

• bright, white flame

What are the observations when a small piece of magnesium ribbon is burned?

(Choose all that apply)

• Bright, yellow sparks.

• No sign of reaction.

• Very vigorous reaction.

• Bright, white sparks.

• Cracking sounds.

What are the observations when a small piece of zinc is burned?

(Choose all that apply)

• Bright, yellow sparks.

• No sign of reaction.

• Very vigorous reaction.

• Bright, white sparks.

• Vigorous reaction.

What are the observations when a small piece of copper is burned?

(Choose all that apply)

• Bright, yellow sparks.

• No sign of reaction.

• Very vigorous reaction.

• Bright, white sparks.

• Vigorous reaction.

What are the observations when an iron fillings are burned?

(Choose all that apply)

• Bright, yellow sparks.

• No sign of reaction.

• Very vigorous reaction.

• Bright, white sparks.

What happens when you sprinkle tiny pieces of iron in a flame?

• Bright sparks are seen

• Smoke is produced

• No reaction occurs

• Loud sound is heard