6 th 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 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 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!