Download Final Exam Study Guide Answers

th
6
Grade Science
Final Exam
Thursday, June 7, 2012
1. What is the biosphere? Ch. 1
• The biosphere is….
– the part of Earth in which living things are found.
2. What are abiotic factors? List at least three
important abiotic factors. Ch. 6
• Three important abiotic factors within an
ecosystem are
– water, sunlight, and air.
3. A group of populations that interact with one another in a
particular area is called a ___________? (Choose one- biome,
community, ecosystem, environment) Ch. 6
• 3. A group of populations that interact with
one another in a particular area is called
– a community.
4. What happens to a species that cannot adapt to
changing conditions in its environment? Ch. 6
• The species may become extinct.
5. An organism that harms another in a symbiotic
relationship is a ____________? (Choose one- prey,
polluter, parasite, predator) Ch. 7
• An organism that harms another in a
symbiotic relationship is a
– parasite
6. What is a decomposer? Give an
example. Ch. 7
• An organism that gets energy by breaking
down the remains of dead organisms is a…
– Decomposer (Ex. Mold)
7. What is a consumer? Give an
example. Ch. 7
• An animal that cannot make its own food from
sunlight. Instead the animal gets energy by
eating other organisms is a…
– Consumer (Ex. Bear)
8. What is a producer? Give an
example. Ch. 7
• A plant directly converts the energy of the Sun
into food through photosynthesis. A plant is
an example of a…
– Producer
9. What do deciduous trees do each
year? Ch. 6
• Each year deciduous trees each year
– shed their leaves and then grow new ones.
10. Why is the soil of the deciduous
forest nutrient rich? Ch. 6
• The soil of the deciduous forest is nutrient rich
– because of decayed leaves.
11. In the nitrogen cycle, where do
animals get their nitrogen? Ch. 7
• Animals get their nitrogen
– from plants
12. List three facts about symbiotic
relationships. Ch. 7
• 1. In parasitic relationships, the parasite is
helped and the host is harmed.
• 2. Both organisms living in a mutualistic
relationship are helped.
• 3. In commensalism, one organism is helped
and the other is neither helped nor harmed.
13. Where are most volcanoes
located? Ch. 8
• Most volcanoes are located?
– on the ocean floor
14. What do seismographs detect? Ch.
8
• Seismographs detect
– ground movement as it occurs in earthquakes
15. Draw a diagram of Earth’s layers.
What is each layer made of? Ch. 8
• Earth’s outer core is a
– very dense liquid
16. Most of Earth’s mass is in the ___? (Choose
one- mantle, core, crust) Ch. 8
• Most of Earth’s mass is in the
– mantle.
17. According to the theory of plate tectonics,
what may form where plates move together?
Ch. 8
• According to the theory of plate tectonics,
mountains form where plates move together.
18. According to the theory of plate tectonics,
what may form where plates move apart? Ch. 8
• According to the theory of plate tectonics,
valleys form where plates move apart.
19. How is a rock different than a
mineral? Ch. 9
• A rock is made up of minerals.
20. Which soil layer has the greatest amount of organic
material? (Choose one- sand, subsoil, topsoil, parent
rock) Ch. 9
• Topsoil has the greatest amount of organic
material.
21. Which soil layer would be the least
conducive for growing plants? Ch. 9
• Parent rock would be the least conducive for
growing plants.
22. Why do farmers plant a cover
crop? Ch. 9
• The cover crop reduces the amount of soil
erosion.
23. Glacier movement formed which
body of water? Ch. 10
• Glacier movement formed
– the Great Lakes
24. What is an important difference
between erosion and weathering? Ch. 10
• Erosion involves movement of materials from
one place to another.
25. What is the main process that has
shaped Earth’s surfaces? Ch. 10
• The main process that has shaped Earth’s
surfaces is
– water running downhill
25. In which state of matter do
particles move the slowest? Ch. 13
• Particles move the slowest in a…
– solid
26. The amount of space an object takes up is its
______. (Choose one- mass, height, density,
volume) Ch. 13
• The amount of space an object takes up is its
– volume
27. Describe water vapor. Ch. 13
• An example of water vapor is
– gas above boiling water
28. Describe condensation? Ch. 13
• An example of condensation is
– little drops of condensed water found on iced
drinks in the summer
29. What is the difference between chemical
change and physical change? Ch. 13
• A chemical change differs from a physical
change because in a chemical change a
substance
– changes into another substance.
30. Kinetic and potential energy are both forms of
________. (Choose one- solar energy, electrical energy,
chemical energy, mechanical energy) Ch. 17
• Kinetic and potential energy are both forms of
– mechanical energy
31. Energy stored in the bonds between atoms is ________.
(Choose one- kinetic energy, thermal energy, electrical energy,
chemical energy) Ch. 17
• Energy stored in the bonds between atoms is
– chemical energy
32. What causes the Earth to act like a
magnet? Ch. 17
• The Earth acts like a magnet because of
– the movement of hot, liquid metal inside Earth
33. On a magnet, where is the
magnetic field strongest? Ch. 17
• The magnetic field is the strongest
– at both poles
34. Any machine with moving parts
will give off heat. Why? Ch. 17
• Any machine with moving parts will give off
heat because
Friction causes mechanical energy to
change to thermal energy.
Good Luck
• Be sure to study and prepare yourself for your
final exam every night and you will do great!
Go to be early and get lots of rest, a sleepy
mind doesn’t perform well! It’s almost
summer and then you can do what you want,
but right now you need to study!