Unit 7 : Unit 7 : Part B 21st Century College English: Book 1.
Unit 7
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Transcript of Unit 7
![Page 1: Unit 7](https://reader037.fdocuments.us/reader037/viewer/2022100603/559499821a28ab131f8b479c/html5/thumbnails/1.jpg)
Science Unit 7 2nd grade
![Page 2: Unit 7](https://reader037.fdocuments.us/reader037/viewer/2022100603/559499821a28ab131f8b479c/html5/thumbnails/2.jpg)
An object moves when a force is applied to it. A force can be a push or a pull.
PULL PULL PUSH
PUSH PUSH PULL
![Page 3: Unit 7](https://reader037.fdocuments.us/reader037/viewer/2022100603/559499821a28ab131f8b479c/html5/thumbnails/3.jpg)
Push and pull forces can make anobject move in different ways:
![Page 4: Unit 7](https://reader037.fdocuments.us/reader037/viewer/2022100603/559499821a28ab131f8b479c/html5/thumbnails/4.jpg)
An object can move easier or harder depending on…
SIZE SHAPE
![Page 5: Unit 7](https://reader037.fdocuments.us/reader037/viewer/2022100603/559499821a28ab131f8b479c/html5/thumbnails/5.jpg)
An object can move easier or harderdepending on…
WEIGHT SURFACE
![Page 6: Unit 7](https://reader037.fdocuments.us/reader037/viewer/2022100603/559499821a28ab131f8b479c/html5/thumbnails/6.jpg)
Forces can change the shape of thesame object
![Page 7: Unit 7](https://reader037.fdocuments.us/reader037/viewer/2022100603/559499821a28ab131f8b479c/html5/thumbnails/7.jpg)
Gravitymakes everything fall to the ground
![Page 8: Unit 7](https://reader037.fdocuments.us/reader037/viewer/2022100603/559499821a28ab131f8b479c/html5/thumbnails/8.jpg)
Thanks to gravity, the heaviest objectwill always hit the ground first
![Page 9: Unit 7](https://reader037.fdocuments.us/reader037/viewer/2022100603/559499821a28ab131f8b479c/html5/thumbnails/9.jpg)
Magnetsattract objects made of metal without touching them