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