Let's go to Camping

1. Sarah is camping and needs to start a fire for cooking. Which material would be best for Sarah to use as kindling to start her fire?

• A) Sarah should use small pieces of wood as they catch fire easily and burn steadily.

• B) Sarah should use large rocks as they heat up quickly and retain heat for cooking.

• C) Sarah should use green leaves as they produce a lot of smoke for signaling.

• D) Sarah should use sand as it spreads heat evenly for cooking.

2. A power plant is looking for an efficient fuel source. Why might the power plant choose to burn coal?

• A) Coal burns cleanly without producing any emissions or waste products.

• B) Coal releases a large amount of energy when burned, making it efficient for generating electricity.

• C) Coal turns into a liquid when heated, making it easy to transport through pipes.

• D) Coal becomes magnetic when burned, allowing for easy collection of ash.

3. Tom notices that the paper he burned in a campfire turned to ash. What property change best explains why the burned paper can't be used for writing anymore?

• A) The burned paper became waterproof and can't absorb ink.

• B) The burned paper turned into a hard, solid block that can't be written on.

• C) The burned paper lost its structure and turned into powdery ash that falls apart.

• D) The burned paper became transparent, making any writing invisible.

4.  A scientist is studying the burning of wood, coal, and paper. What common change would the scientist observe in all three materials?

A) All three materials will increase in mass as they absorb oxygen from the air.

B) All three materials will change color, typically becoming darker or black.

C) All three materials will turn into the same type of gas when fully burned.

D) All three materials will become magnetic after burning.

• A) All three materials will increase in mass as they absorb oxygen from the air.

• B) All three materials will change color, typically becoming darker or black.

• C) All three materials will turn into the same type of gas when fully burned.

• D) All three materials will become magnetic after burning.

5.  Lisa is learning about the uses of burned materials. Which statement about the uses of burned materials is correct?

A) Burned paper is commonly used to make new, stronger paper products.

B) Burned coal is often used as a food preservative due to its chemical properties.

C) Burned wood, in the form of charcoal, can be used for cooking and drawing.

D) Burned materials generally become more valuable than their unburned form.

• A) Burned paper is commonly used to make new, stronger paper products.

• B) Burned coal is often used as a food preservative due to its chemical properties.

• C) Burned wood, in the form of charcoal, can be used for cooking and drawing.

• D) Burned materials generally become more valuable than their unburned form.