1.
– When a liquid becomes solid because it gets very cold. ~(F, 6 letters)
2.
– When a solid turns into a liquid because it gets warm. (M, 4 letters)
3.
– When a gas turns into a liquid, usually when it cools down. (C, 8 letters)
4.
– When a liquid turns into a gas, often because of heat. (E, 9 letters)
5.
– When a solid mixes completely with a liquid to form a solution. (D, 8 letters)
6.
– When a substance forms solid crystals, often from a solution or from cooling. (C, 11 letters)
7.
– When bubbles form and make a hissing sound, usually during a chemical reaction. (F, 7 letters)
8.
– When something catches fire and gives off heat and light. (B, 7 letters)
9.
– When metal (like iron) slowly changes colour and breaks down because of water and air. (R, 7 letters)
