Across
- 4. data, information in the form of numbers and units
- 9. what you think about will/could happen in the future
- 10. reaction: A process by which two or more chemical substances interact and are chemically changed, producing different chemical substances.
- 12. A chemical reaction during which plants convert radiant energy from the Sun to chemical energy; the reaction converts carbon dioxide and water into sugar (glucose).
- 13. energy, Energy from the sun that reaches earth as visible light, and ultraviolet and infrared (heat) radiation.
- 15. what you keep the same in an experiment to make sure that only the independent variable is being changed.
- 16. The simplest unit of a chemical compound that can exist, formed when two or more atoms join together chemically.
Down
- 1. Simple carbohydrates; produced by photosynthesis and used to store energy and build structural molecules.
- 2. A substance that takes part in and undergoes change during a reaction.
- 3. factors that can have an effect on the experiment
- 5. A substance produced during a chemical reaction.
- 6. a testable explanation that can be written as an “if/then” statement that uses a reason to explain an idea
- 7. data, descriptive information collected using 5 senses
- 8. The smallest particle of an element, made of electrons, protons, and neutrons.
- 11. energy, Energy stored in chemical bonds and released through chemical reactions.
- 14. What is used to COMPARE the results to.