ABC Science

4. Energy in the form of motion, as in a moving car or truck
6. The bending of waves, caused by changing their speed
7. A galvanometer that measures potential differences
8. Electromagnetic waves that have a higher frequency than visible light
12. An electrical circuit where the current flows through more than one path
15. Highly active elements in periodic table Group 17; they have seven electrons in their outer shells and readily combine with Group 1 elements
16. An alloy containing the element mercury
18. Very small particle of matter that makes up protons and neutrons
19. The basic unit of energy and work
20. The gradual change of a substance from a liquid to a gas at temperatures below the boiling point
21. Organic material from such sources as wood, corn, and wastes from animals and crops
22. The measure of the force of gravity of an object
23. Atomic particle with no charge that is part of an atom's nucleus
24. An organic compound that changes color in an acidic solution or a basic solution
25. the point in the sky or celestial sphere directly above an observer

1. A device that can increase or decrease the voltage of an alternating current
2. A molecule composed of two atoms of the same element
3. An organic compound having twice as many hydrogen atoms as oxygen atoms
5. The number of wave crests that pass a point during one second; expressed in hertz
9. The unit for measuring resistance
10. Metric prefix denoting 10^24
11. A simple machine consisting of a bar that is free to pivot around a fixed point
13. The process of making soap
14. Ability of metals to be hammered or rolled into thin sheets
17. A device that uses electromagnetic induction to induce electrical current by rotating loops of wire through a magnetic field