Problem: Write a question you would see in a school textbook.

Answer: Which action illustrates a chemical change?

Problem: Write a question you would see in a school textbook.

Answer: After a race, a newspaper lists the names of the five fastest runners. Another method that could be used to identify the five fastest runners is to make a chart that shows the

Problem: Write a question you would see in a school textbook.

Answer:
The measure of the amount of light received on Earth from a star is known as