Chemistry and Physics Lesson 4

Edit Answers
123456789101112
Across
  1. 3. Molecules arranged in long chains of lots of repeating small molecules
  2. 4. When heat energy is absorbed during a chemical reaction TWO WORDS
  3. 6. The substances you start with in a chemical reaction
  4. 9. When two or more chemical substances interact with each other and change into different chemical substances TWO WORDS
  5. 10. Solids that have a regular, repeating arrangement of atoms
  6. 11. A term that means potential for hydrogen
  7. 12. A base that works against the acid upsetting your stomach
Down
  1. 1. When heat energy is released during a chemical reaction TWO WORDS
  2. 2. A reaction that doesn't change the molecules of substance but changed how the substance looks and sometimes its state TWO WORDS
  3. 5. the chemical opposite of an acid
  4. 7. A substance that tastes sour, conducts electricity, ruins metals, and donates hydrogen ions
  5. 8. Valuable crystals often used to make jewelry
  6. 10. A substance that speeds up a chemical reaction without being used up in the process
  7. 11. A type of polymer that is hard to break and can be recycled