Name:______________________________
Class Section:_________
Date:_______________
7th Grade Science – Course Pre-Test
______ 1. A group of ecosystems with similar climates and organisms is known as a
a. community.
b. biome.
c. habitat.
d. niche.
______ 2. Earth spinning on it’s axis is called a(n)
a. revolution.
b. orbit.
c. cycle.
d. rotation.
______ 3. When water freezes, it undergoes
a. a chemical change.
b. sublimation.
c. a physical change.
d. vaporization.
______ 4. The tendency of an object to resist a change in motion is called
a. inertia.
b. orbital motion.
c. gravity.
d. universal gravitation.
______ 5. A(n) _______________________ has some of the properties of both metals and nonmetals.
a. alloy
b. alkaline earth metal
c. metalloid
d. noble gas
______ 6. Producers such as plants make their own food through the process of
a. photosynthesis.
b. symbiosis.
c. nitrogen fixation.
d. succession
______ 7. When the south end of the Earth’s axis is tilted toward the sun,
a. it is summer in the Northern Hemisphere.
b. it is winter in the Northern Hemisphere.
c. the sun is low in the sky in the Southern Hemisphere.
d. the sun is farthest north of the equator.
______ 8. How do crystalline and amorphous solids differ?
a. Crystalline solids do not melt at distinct temperatures.
b. Amorphous solids are made up of crystals.
c. Amorphous solids are always soft.
d. Crystalline solids have a regular pattern of particles but amorphous solids do not.
______ 9. Ecologists study feeding patterns to learn how energy flows within a(n)
a. species.
b. population.
c. ecosystem.
d. niche.
______ 10. Which two variables affect the strength of the force of gravity between two objects?
a. mass and umbra
b. penumbra and distance
c. umbra and penumbra
d. mass and distance
______ 11. Bromine has atomic number 35. From this information you know that a bromine atom has
a. 35 protons and 35 electrons.
b. 35 protons and 35 neutrons.
c. 35 elections and 35 neutrons.
d. 35 protons and 7 electrons.
______ 12. The most diverse ecosystem in the world are
a. temperate rainforest.
b. tropical rainforest.
c. coral reefs.
d. boreal forests.
______ 13. The lunar eclipse only occurs when the moon is in the ___________________ phase.
a. new
b. waning crescent
c. full
d. waxing gibbous
______ 14. Which of the following describes a chemical property of metals?
a. malleable
b. good conductivity
c. brittle
d. ductile
______ 15. A diagram that shows the amount of energy that moves from one feeding level to another in an
ecosystem is called a(n)
a. food chain.
b. food web.
c. succession.
d. energy pyramid.
______ 16. Which factors contribute to the reason for seasons?
a. altitude and rotation
b. Earth’s axis and revolution
c. rotation and revolution
d. altitude and Earth’s axis
______ 17. Every chemical or physical change in matter includes a change in
a. volume.
b. temperature.
c. energy.
d. mass.
______ 18. A symbiotic relationship in which one species benefits and the other species is neither helped nor
harmed is called
a. commensalism.
b. symbiosis.
c. predation.
d. mutualism.
______ 19. The energy of matter in motion is ____________________ energy.
a. electromagnetic
b. potential
c. chemical
d. kinetic
______ 20. The number of protons in an element is also it’s
a. chemical symbol.
b. atomic number.
c. atomic mass.
d. number of neutrons.
______ 21. The nonliving parts of an ecosystem such as sunlight, water and soil are examples of
a. biotic factors.
b. carrying capacity.
c. abiotic factors.
d. adaptions.
______ 22. Which of the following is NOT true of atoms?
a. They are composed of molecules.
b. They can combine with other atoms.
c. They make up elements.
d. They are extremely small.
______ 23. The change from a gas to a liquid is called
a. evaporation.
b. melting.
c. condensation.
d. sublimation.
______ 24. The processes of evaporation, condensation and precipitation make up the
a. oxygen cycle.
b. nitrogen cycle.
c. food chains.
d. water cycle.
______ 25. A liquid has a
a. constant temperature.
b. definite shape.
c. crystal structure.
d. definite volume.
______ 26. An extremely cold, dry biome is called the
a. tundra.
b. boreal forest.
c. neritic zone.
d. deciduous forest.
______ 27. As the gas in a rigid container is heated, its
a. volume increases.
b. pressure increases.
c. volume decreases.
d. pressure decreases.
______ 28. The _______________ is the major source of energy for wind, ocean currents and the hydrologic cycle.
a. umbra
b. Earth
c. orbit
d. Sun
______ 29. An element’s __________________ tells the number of protons in it’s nucleus.
a. atomic mass
b. chemical symbol
c. atomic number
d. period
______ 30. The particles that are lost, gained, or shared in chemical reactions are
a. plasmas.
b. protons.
c. electrons.
d. neutrons.
______ 31. Directions: Match the vocab words to the correct place.
Add your answers to this sheet as well as the bubble sheet.
______ 32.
31
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______ 34.
______ 35.
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______ 36. Identify parts of the atom. Fill in your answers on the bubble sheet and on this test.
______ 37.
______ 38.
36
A: Proton
______ 39.
37
B: Neutron
C: Electron
38
D: Nucleus
39
______ 40. One of these diagrams demonstrates the flow of energy. Select the diagram that is labeled correctly.
A
B
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