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