A) The water, grains of clay, and grains of sand are all of equal weight. B) The grains of sand are heavier than the water and the grains of clay. C) The water is heavier than the grains of clay and the grains of sand. D) The grains of clay are heavier than the grains of sand and the water.
A) The temperature where the rock was found B) The minerals the rock contains C) The size of the rock D) The weight of the rock
A) Mineral A B) Mineral B C) They have the same hardness D) Mineral C
A) How the rock was formed B) The forces of erosion C) The number of fossils in the rock D) How much sunlight the rock receives
A) c B) a C) d D) b
A) Gas to liquid B) Liquid to gas C) Liquid to solid D) Solid to liquid
A) Steam B) Ice Cube C) Pencil D) Milk
A) She observed squirrels and birds and writes down everything they eat B) She counts the number of birds and squirrels in a park C) She feeds sugar water to each and records how much they drink D) She puts a squirrel and a bird together in a cage for a week and observes them
A) Stay warm B) Fly away quickly C) Locate nectar filled flowers D) Frighten or confuse enemies
A) Use a magnet to pick up the iron cans B) Heat the iron cans until they melt C) Float the cans in water D) Use scissors to cut the cans
A) Use disposable plates B) Use biodegradable materials C) Visit a landfill
A) Which type of paper is safest for the environment? B) Which type of paper is the most colorful? C) Which type of paper is most absorbent? D) Which type of paper is the best buy?
A) Use different amounts of water to test each paper towel. B) Use hot water to test some paper towels and cold water to test other paper towels. C) Use maple syrup to test some paper towels and water to test other paper towels. D) Use the same amount of water to test each paper towel.
A) Heat the mixture B) Use a magnet C) Use a magnifying glass D) Pour water on the mixture
A) Water B) Tin C) Rubber D) Aluminum
A) He can add more wires B) He can add more light bulbs C) He can add more batteries D) He could add bigger light bulbs
A) Brand M lasted longer than the other brands tested. B) Brand L caused the light to shine farther than the other brands tested. C) Brand N gave off a stronger light than the other brands tested. D) Brand O was more expensive than the other brands tested.
A) All of the bulbs look bright to me, so there cannot be an answer. B) One bulb looks brightest to me, so I already know the answer. C) We can take votes and each person will vote for the bulb he or she thinks is the brightest. D) It would help if we had a way to measure the brightness of a light bulb.
A) Wide and steep B) Narrow and level C) Wide and level D) Narrow and steep
A) Erosion B) Precipitation C) Condensation D) Evaporation
A) The rate of erosion will increase B) There will be less food and shelter C) The natural enemies of birds will be eliminated D) Weather conditions may change
A) Eat the valve snail or the mosquito larva B) Eat pond grass and algae C) Live in warmer areas of its habitat D) Go through the process of photosynthesis
A) Copper wire B) Rubber band C) Plastic tube D) Toothpick
A) roll it with more force B) make the surface of the ball rough C) roll it with less force
A) Layering B) Wind and water erosion C) Great heat and pressure D) Volcanic activity
A) The movement of air B) The melting of an ice cube C) The movement of air D) The emptying of air from a balloon
A) Place objects of different sizes and made of different materials into water B) Ask friends what they think C) Decide what he will conclude D) Gather several sets of different-sized objects made of the same material into water
A) An iron spoon B) A wooden spoon C) A silver spoon D) An aluminum spoon
A) A test tube B) A balance C) A telescope D) A magnifying lens
A) Place the cup in warm water B) place you drink in the refrigerator for 10 minutes C) Place the cup in cold water |