FORMATIVE ASSESSMENT

What does the word "flammability" mean?

• How heavy a material is

• How shiny a material looks

• How easily a material can catch fire and burn

• How strong a material is

Which of the following materials is the most flammable?

• Metal paperclip

• Rock

• Cotton ball

• Glass

Why is it important to know if a material is flammable?

• To use them for decoration

• To avoid losing them

• To keep ourselves safe from fire

• To make them heavier

What did you observe when paper was exposed to a flame?

• t turned cold

• It caught fire and burned quickly

• It became harder

• It stayed the same

Which of these materials is non-flammable?

• Dry leaves

• Paper

• Plastic straw

• Metal paperclip

What is an example of a flammable material?

• Glass

• Metal

•  Paper

• Rock

When iron reacts with oxygen and moisture in the air, what does it form?

• Aluminum oxide

• Rust

• Carbon dioxide

• Hydrogen gas

Which of the following materials is biodegradable?

• Plastic drinking straw

• Nylon fishing line

• Banana peel

• Styrofoam packaging

What happens to a banana peel when it is discarded in a natural environment?

• It remains unchanged indefinitely

• It decomposes into simpler organic compounds

• It reacts with other materials to form new substances

• It breaks down into smaller pieces over time.

Which of the following takes a long time to break down?

• Paper

•  Bread

• Leaf

• Plastic straw