Bath Bomb Crossword

3. a change in the physical state of matter, such as ice melting into water or water boiling into steam
8. the ability of a substance to catch fire easily and burn
9. a system that does not let matter in or out, but energy (like heat or light) can still move in or out.
12. something that can change or be changed in an experiment
14. a substance that undergoes a chemical reaction to produce a product
15. the smallest unit of matter that still retains the properties of an element
16. a substance produced during a chemical reaction

1. a white, crystalline powder often used in baking as a leavening agent to help dough rise.
2. not able to dissolve in a liquid, such as sand in water
4. a process in which one or more substances are transformed into new substances with different properties
5. a system that allows both matter and energy to move in and out.
6. the physical form in which matter exists, such as solid, liquid, or gas
7. a weak acid found in citrus fruits such as lemons and oranges, often used as a natural preservative in food and drinks
10. a group of two or more atoms chemically bonded together, such as water being made up of two hydrogen atoms and one oxygen atom
11. the ability of a substance to dissolve in a liquid, such as salt's high solubility in water
13. the amount of matter in a given space, often measured as mass per unit of volume