1) The safest thing to do if something breaks in the science laboratory is to report it to the science teacher immediately.
2) Earth's layers formed as heavier and lighter elements separated as rocks melted.
3) There are 1,000 meters in a kilometer.
2. If something breaks in the science
laboratory, the safest thing to do is
a. Throw away the broken equipment in
the nearest trash can.
b. Swap your broken equipment for
another group’s unbroken equipment.
c. Report the broken equipment to the
science teacher immediately.
d. Report the broken equipment to the
science teacher during homeroom the
next day.
3. Earth’s layers formed as rocks melted and
a. heavier and lighter elements separated.
b. lava from volcanoes covered Earth.
c. different landforms developed.
d. earthquakes caused elements to settle.
5. The moon’s pull is strongest at the place
on Earth that is
a. opposite the moon.
b. directly facing the moon.
c. opposite the sun.
d. directly facing the sun
6. The daily change in the level of ocean
tide
water is called a ___________.
7. If you want to measure the mass of an
object in the laboratory, the best tool to
triple-beam balance
use is a _________________________.
8. What happens when the moon is waxing?
a. The sunlit part we see appears to get
larger.
b. The sunlit part we see appears to get
smaller.
c. The sunlit part we see appears to stay
the same.
d. The sunlit part we see appears to go
away.
9. Nitrogen and Oxygen mainly make up
Earth’s………
a. Core
b. Mantle
c. Crust
d. Atmosphere
10. Early life-forms released oxygen into
Earth’s atmosphere through the process
of
a. photosynthesis.
b. oxidation.
c. osmosis.
d. pollination.
11. Why don’t solar and lunar eclipses occur
every month?
a. The moon’s orbit is an ellipse.
b. The moon’s distance from Earth
changes.
c. The shadows do not line up correctly.
d. The moon’s orbit is tilted.
12. If the moon completely covers the sun, we
are having a
a. total solar eclipse
b. Partial lunar eclipse
c. Tidal bore
d. Neap tide
13. What causes the phases of the moon?
a. the relative positions of the
moon, Earth, and the sun
b. the tilted orbit of the moon
c. the moon’s period of revolution just
equals its period of rotation
d. sunlight reflecting off Earth’s surface
14. Each planet moves around in the sun in
a path the shape of a circle.
a path the shape of a spiral.
a path the shape of an ellipse.
similar-sized orbits.
15. During which moon phases does Earth
experience spring tides?
a. Full and new moon
b. 1st and 3rd quarters
c. Gibbous phases
d. Crescent phases
16. The 23.5o tilt of Earth’s axis is the primary
reason that Earth has
a. Rotation
b. Eclipses
c. Seasons
d. Day and night
17. How do the inner planets differ from the
outer planets?
a. They are composed mostly of gases.
b. They do not have any moons.
c. They are extremely large.
d. They have hard, rocky surfaces.
18. Making measurements with tools such as
thermometers is a kind of
a. hypothesis.
b. conclusion.
c. prediction.
d. observation.
19. The ways in which scientists answer
questions and solve problems is known
as
a. Data
b. Scientific methods
c. Observation
d. Hypothesis
20. The time required for the Earth to rotate
day
once on its axis is called a ________.
21. Which planet is the third from the sun?
a. Jupiter
b. Earth
c. Mars
d. Venus