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STAAR 8th Grade Science Review (New)
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STAAR 8th Grade Science Review (New)
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25 Questions

1.
energy locked in the nucleus of an atom

2.
no reflected light from the sun is visible

3. energy cannot be created or destroyed, but can be transformed into other forms of energy

4. the process in which characteristics are passed from parents to offspring

5. a characteristic that can be observed or measured without changing the
composition of a substance

6.
the appearance of phases of the Moon as viewed from Earth, as the Moon orbits the
Earth, 28 days to complete

7.
an underground layer of permeable rock, sediment, or soil that contains water

8.
a tide in which the difference between high and low tide is the greatest

9.
a flat, disk-shaped galaxy with a central bulge and 'arms' that extend outward

10.
a set of characters (letters) that are used to represent an element

11.
speed that remains the same or does not change

12. a substance that consists of 2 or more elements

13.
the least amount of difference between high and low tides

14.
the variety of all living organisms in an ecosystem

15.
the change in elevation from one contour line to another

16.
equal day and night (12 hours of each) Earth is titling back toward the sun

17.
a huge system of millions or billions of stars, together with gas and dust held together by gravity

18.
a series of events in which one organism eats another in order to gain energy

19.
energy from vibrations in matter

20.
elements located on the stair-step (zig zag) line on the Periodic Table except for Aluminum

21.
a diagram that shows the amount of energy moving from one feeding level to another

22.
the ability to be stretched into a wire

23.
the Earth is tilted toward the Sun resulting in more daylight and higher temperatures

24.
an organism that can make its own food through photosynthesis

25. the units used for force