Which best explains why burning wood is a chemical change?

What is the original source of most of the energy that people use?

How does heat energy from the Sun reach Earth?

Which best explains why melting ice is a physical change instead of a chemical change? A. It does not smell bad. B. It changes from a solid to a liquid. C. It does not form a new substance. D. It changes quietly with no loud sound.

Which explains how most metals react to being heated?

Max adds 250 g water and 250 g rice to a pot on a stove and covers the pot with a lid. The water boils and is absorbed by the rice. How much do the contents of the pot weigh after the rice finishes cooking? A. 250 g B. 400 g C. 500g D. 600g

Bob puts 200 grams of ice into a pitcher with 900 grams of water. He comes back later to find that the ice has melted in the water. How many grams of water does Bob now have in the pitcher? A. 200 g B. 700 g C. 900 g D. 1100 g

Jacob cuts a one-pound block of cheese into four slices. What is the weight of the cheese after it is sliced? A. 1/4 pound B. 1 pound C. 2 pounds D. 4 pounds

Why is copper often used to line the bottom of cookware?

Why are pots used for cooking made of metal?

Which process of the water cycle returns condensed water to the earth’s surface?

Which type of change occurs when the size, shape, appearance, or volume of a substance is changed without changing its composition?

James put some water in a pan. He put the pan on a stove and turned the stove on low. What will happen to the water?