Down |
2. | negative particle in the cloud outside the atom |
3. | the kind of bond in the water molecule |
4. | the closeness of your answer to the correct answer |
5. | variable in an experiment that you control |
6. | a physical property, like color, that is the same no matter how much of a substance you have |
7. | an educated guess |
8. | the kind of observation that doesn't include a number |
9. | the kind of change, like rusting, that creates a new substance |
10. | temperature scale based upon absolute zero |
12. | energy from the sun |
13. | the kind of mixture that is the same throughout |
16. | a process that separates parts of a mixture based upon solubility |
18. | mass number is protons plus these |
19. | the state of matter that has both shape and volume |
20. | positive particle in the nucleus of an atom |
23. | matter made up of only one kind of atom |
25. | the kind of bond that leaves a positive and negative end on a molecule |
26. | the water in a salt solution |
29. | anything that has mass and takes up space |