Across
- 2. What substances are formed when acids react with bases?
- 3. What do we call a substance made of different elements chemically joined?
- 7. What do we call a combination of substances that are not chemically joined?
- 8. What do we call the elements that make up a substance?
- 11. Which negatively charged particles move around the nucleus?
- 14. What substances taste sour and turn blue litmus red?
- 15. Which positively charged particles are found in the nucleus?
- 17. What is the central part of an atom called?
Down
- 1. What do we call the reaction between an acid and a base?
- 4. What do we call the new substances formed after a chemical reaction?
- 5. Which neutral particles are found in the nucleus?
- 6. What is the smallest part of an element?
- 9. What do we call two or more atoms joined together?
- 10. substance What do we call any material that has a specific composition?
- 12. What do we call a mixture where one substance dissolves in another?
- 13. What do we call the substances that react in a chemical reaction?
- 16. What substances feel slippery and turn red litmus blue?
- 18. reaction What do we call a process where substances change into new substances?