1. TRANSPORTATION. We use cars, bicycles, trains and the bus for transportation.
2. COMMUNICATION. We use the telephones, cellphones, computers, laptops and tablets for communication.
3. ELECTRICITY. Scientists discovered electricity more than 250 years ago.
4. PLASTIC. We make a lot of things with plastic, it is safer and cheaper.
5. METAL. Another material we use is METAL.
6. GLASS. One very dangerous material is GLASS.
7. HEALTH. We must takes care of our health.
8. MEDICINES. Scientists discover medicines, medicines make us strong and cure illnesses.
9. ILLNESSES. Vaccinations prevent and cure illnesses.
10. VACCINATIONS. We use vaccinations to prevent illnesses like smallpox.
11. RESEARCH. Scientists do a lot of research in their laboratories.
12. BACTERIA. Scientists discovered that some bacteria cause illnesses.
13. PASTEURIZATION. We use pasteurization to preserve milk and yogurt.
14. SCIENTISTS. Scientist do research and discover cures for illnesses.
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