Holiday Homework- Crossword

2. Lime: calcium hydroxide formed by the reaction of quicklime with water.
4. the light-sensitive layer at the back of the eye where images are formed.
6. a digestive juice produced by the liver that emulsifies fats and helps their digestion.
7. a protein-digesting enzyme secreted by the gastric glands of the stomach.
9. oxidation of fats and oils in food, causing unpleasant smell and taste.
11. the bending of light as it passes from one transparent medium to another due to a change in its speed.
14. Oxides: when a metal reacts with oxygen, it forms ________
15. a digestive enzyme secreted by the pancreas that helps break down proteins in the small intestine.

1. the process of coating iron or steel with zinc to prevent rusting.
3. the splitting of white light into its constituent colours.
5. standard SI unit of optical power for lenses and curved mirrors
8. Image: an image that cannot be obtained on a screen
10. a concentrated aqueous solution of common salt
12. biological catalysts, primarily composed of proteins.
13. Alkali: an industrial method that electrolyzes brine (saltwater) to produce chlorine, hydrogen, and sodium hydroxide.