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OGW 9 weeks test
chapters 1 - 4
Question | Answer |
---|---|
Who believed in an earth-centered universe? | Ptolemy |
Who believed in a sun-centered universe? | Copernicus |
Who discovered three laws of planetary motion? | Kepler |
Who discovered the law of universay gravity? | Sir Isaac Newton |
What is a symmetrically shaped oval? | ellipse |
This name means "wanderers" | planet |
What is the distance between the earth and sun (in miles) | 93 million miles |
the force of attraction existing between any two objects | gravity |
the two points inside an ellipse | foci |
the phase of the moon displaying the most light | full |
the tide that occurs when the moon is in line with the sun | spring |
What contains the sun and all the heavenly bodies orbiting the sun? | Milky Way |
Name the only 2 planets without moons | Venus & Mercury |
What does it take the earth 24 hours to do? | rotate |
The amount of time it takes for a comet to complete its orbit | period |
what type of year = 365 1/4 days? | solar year |
what is an asteroid-sized chunk of rock, dust and ice that develops a huge, bright "tail" as it approaches the sun? | comet |
a band of comet-like objects located beyond Neptune's orbit? | Kuiper's belt |
The noticeable part of the flower that attracts bees is the ___ | petal |
The part of the seed that is a mini plant | embryo |
The ____ of the plant develops into the fruit | ovary |
An underground storehouse (plant) with layers of thick, fleshy leaves surrounding a short stem | bulb |
Invertebrate with ability to regenerate lost body parts | crustacean |
invertebrate with two distinct body regions | spider |
invertebrate with 3 pairs of jointed legs | insect |
invertebrate with strong pinchers | crustacean |
invertebrate with 8 legs | spider |
invertebrate with one or more pairs of wings | insect |
process where plants change sunlight into food | photosynthesis |
where photosynthesis occurs | chloroplasts |
chemical catalyst used in photosynthesis | chlorophyll |
photosynthesis requires these items | sunlight, chlorophyll, air (CO2), water |
photosynthesis creates….. | oxygen and food for plant |
What is a solar eclipse | when the new moon moves directly between the sun and earth, blocking the sun's photosphere from our view What is a lunar eclipse |