Across
- 3. a substance that undergoes a chemical reaction to produce a product
- 4. a combination of two or more substances that are not chemically combined such as saltwater or trail mix
- 8. something that can change or be changed in an experiment
- 12. the smallest unit of matter that still retains the properties of an element
- 13. not able to dissolve in a liquid, such as sand in water
- 14. the ability of a substance to catch fire easily and burn
- 15. a type of matter that has a uniform and definite composition, such as water or salt
- 18. change, a change in the physical state of matter, such as ice melting into water or water boiling into steam
- 19. system, a system that allows both matter and energy to move in and out.
- 20. a group of two or more atoms chemically bonded together, such as water being made up of two hydrogen atoms and one oxygen atom
Down
- 1. acid, a weak acid found in citrus fruits such as lemons and oranges, often used as a natural preservative in food and drinks
- 2. the amount of matter in a given space, often measured as mass per unit of volume
- 5. the ability of a substance to dissolve in a liquid, such as salt's high solubility in water
- 6. a substance produced during a chemical reaction
- 7. soda, a white, crystalline powder often used in baking as a leavening agent to help dough rise.
- 9. reaction, a process in which one or more substances are transformed into new substances with different properties
- 10. a characteristic or quality of something that helps identify or describe it
- 11. salt, a naturally occurring mineral compound of magnesium and sulfate, often used in baths to sooth sore muscles.
- 16. of matter, the physical form in which matter exists, such as solid, liquid, or gas
- 17. system, a system that does not let matter in or out, but energy (like heat or light) can still move in or out.