6th Grade Science

Final ExamThursday, 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!