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Yr 7 Sci Revision
Semester 2 Topics
| Term | Definition |
|---|---|
| newtons | Measurement of force |
| balanced forces | Forces that are equal |
| gravity | Force of a planet holding us down on the ground |
| contact forces | Forces that are touching |
| friction | The force that slows things down |
| spring balance | Measures force |
| weight | This is mass time Weight |
| spring tide | Moon and sun on the same side of the earth |
| earths rotation | Takes 24h for a full rotation |
| mass | How much space we take up |
| probe | sent away from earth and collects information, never comes back |
| telescope | Helps us see far away planets |
| solar eclipse | The moon blocks out the sun from the earths view |
| static electricity | build up of charges on 2 different surfaces |
| bouyancy | A force that acts in water and pushes objects upwards |
| heliocentric | Sun in the center |
| geocentric | Earth in the center |
| planet order | Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune |
| cell wall | structure found on the outside of all plant cells |
| microscope | Helps us see really small things |