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Gr 6 SC Ch 1-4 EXAM
Gr 6 Science
| Term | Definition |
|---|---|
| ellipse | symmetrically shaped oval |
| planets | name means the "wanderers" |
| astronomical unite | distance between the earth and the sun |
| gravity | the force of attraction that exists between any two objects |
| foci | the two points inside an ellipse |
| full moon | the phase of the moon displaying the most light |
| spring tide | the tide that occurs when the moon is in line with the earth and sun |
| solar system | made up of the sun and al the heavenly bodies that orbit it |
| Venus and Mercury | only two planets with no moons |
| rotation | the Earth completes one of these every 24 hours |
| period | the amount of time it takes for a comet to complete its orbit |
| solar year | another term for 365 1/4 days |
| comet | an asteroid-sized chunk of rock, dust, and ice that develops a huge, bright 'tail' as it approaches the sun |
| Kuiper belt | a band of comet-like objects located beyond the orbit of Neptune |
| crustacean | invertebrate which has the ability to regenerate lost body parts |
| spider | invertebrate with two distinct body regions |
| insect | invertebrate with three pairs of jointed legs |
| crustacean | invertebrate with strong pinchers |
| spider | invertebrate with eight legs |
| insect | invertebrate with one or more pairs of wings |
| photosynthesis | the chemical process by which green plants produce food; only green plants are capable of making their own food |
| 1. Mercury 2. Venus 3. Earth 4. Mars 5. Jupiter 6. Saturn 7. Uranus 8. Neptune | list the planets in order from closest to the sun outward |
| Claudius Ptolemy | scientist which presented the idea of an earth-centered universe |
| Nicolaus Copernicus | scientist whom presented the idea that all the planets orbit the sun, and that the earth itself is also a planet |
| Johannes Kepler | scientist who discovered that the planets do not travel in perfect circles, but in ellipses; formulated three laws of planetary motion |
| Sir Isaac Newton | scientist who discovered the law of universal gravitation |
| constellation | the stars outlining an imaginary picture in the sky |
| auroras | breathtaking displays of light that occur when solar wind particles collide with molecules of air in the earth's atmosphere |
| weathering | a process that causes rocks to gradually break or crumble into smaller pieces |
| metamorphosis | change in form (usually in reference to invertebrates) |
| regeneration | the growing back of a lost body part |
| tree | a tall plant with a single woody stem |
| to make food | the purpose of photosynthesis |
| light, water, air | the three necessary "ingredients" for the process of photosynthesis |
| oxygen, glucose | the two products of photosynthesis |
| chlorophyll | the pigment, or coloring, which makes plants green |
Created by:
timberswartz05