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