2. Science Indicator 4.6.2 Show that something may not work as well, or at all, if a part of it is missing, broken, worn out, mismatched, or incorrectly connected.
3. Definitions Missing- not found Broken- not working properly Worn out- cannot be repair Mismatched- two parts that don’t fit together Incorrectly Connected- put together the wrong way
4. Definitions Draw or write what you think each word means Missing- Broken- Worn out- Mismatched- Incorrectly Connected-
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6. Although a flashlight is a relatively simple device, its invention did not occur until the late 19th century because it depended upon the earlier invention of the electric battery and electric light.
8. In 1896, the first dry cell battery was invented. Unlike previous batteries, it used a paste electrolyte instead of a liquid. This was the first battery suitable for portable electrical devices, as it did not spill or break easily and worked in any orientation.
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10. The company donated some of these devices to the New York City police, who responded favorably to them.
11. These early flashlights ran on zinc-carbon batteries, which could not provide a steady electric current and required periodic 'rest' to continue functioning.
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13. Do you see the light? Take the flashlight and put one AA battery and one D battery in the flashlight. Turn the flashlight on. Write in your science journal what happened.
14. Do you see the light? Take the flashlight and put 2 D batteries in the flashlight. Turn the flashlight on. Write in your science journal what happened.
15. Perfect Match Take the deck of cards and remove the 2 of hearts, 7 of hearts, 9 of hearts, King of hearts and Ace of hearts. With a partner play Old Maid, with the Joker as the old maid. Write in your science journal what happened at the end of the game.
16. Perfect Match Put the 2 of hearts, 7 of hearts, 9 of hearts, King of hearts and Ace of hearts you removed back in the deck and play Old Maid again, with the Joker as the old maid. Write in your science journal what happened at the end of the game.
17. To Write or Not to Write Take the pencil and put the lead in the pencil from the container labeled A. Write the following sentence- I went to the store. Write in your science journal what happened.
18. To Write or Not to Write Take the pencil and put the lead in the pencil from the container labeled B. Write the following sentence- I went to the store. Write in your science journal what happened.
19. Questions Why did some things (flashlight, game, and pencil) work, but others didn’t? Can you think something else that wouldn’t work right if a piece was missing, broken, worn out, incorrectly connected, or mismatched?
20. Questions Who invented the flashlight A. Bob Wallace B. Conrad Hubert C. Chuck Lewis What year was the flashlight invented? A.1988 B. 1998 C.1898
