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