Across
- 2. the addition of oxygen to a substance is called
- 6. the element used almost exclusive for filaments of incandescent lamps
- 7. reaction takes place when electricity is passed
- 8. the reaction in which the energy is given out
- 9. power of convex lens is
- 10. measures blood pressure
Down
- 1. heat is evolved during reaction
- 3. the image which can be obtained on screen
- 4. magnification of plane mirror
- 5. amoeba uses for digestion