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 minerals the rock contains C) The temperature where the rock was found D) The weight of the rock
A) Mineral B B) Mineral C C) They have the same hardness D) Mineral A
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) b D) c
A) Liquid to solid B) Gas to liquid C) Liquid to gas D) Solid to liquid
A) Milk B) Ice Cube C) Pencil D) Steam
A) She counts the number of birds and squirrels in a park B) She puts a squirrel and a bird together in a cage for a week and observes them C) She feeds sugar water to each and records how much they drink D) She observed squirrels and birds and writes down everything they eat
A) Frighten or confuse enemies B) Stay warm C) Fly away quickly D) Locate nectar filled flowers
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 biodegradable materials B) Visit a landfill 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 the same amount 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 hot water to test some paper towels and cold water to test other paper towels. D) Use different amounts of water to test each paper towel.
A) Pour water on the mixture B) Use a magnet C) Use a magnifying glass D) Heat the mixture
A) Rubber B) Tin C) Water D) Aluminum
A) He can add more batteries B) He can add more light bulbs C) He could add bigger light bulbs D) He can add more wires
A) Brand L caused the light to shine farther than the other brands tested. B) Brand M lasted longer 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) It would help if we had a way to measure the brightness of a light bulb. B) One bulb looks brightest to me, so I already know the answer. C) All of the bulbs look bright to me, so there cannot be an answer. D) We can take votes and each person will vote for the bulb he or she thinks is the brightest.
A) Narrow and level B) Wide and steep C) Wide and level D) Narrow and steep
A) Precipitation B) Condensation C) Evaporation D) Erosion
A) The rate of erosion will increase B) Weather conditions may change C) The natural enemies of birds will be eliminated D) There will be less food and shelter
A) Eat the valve snail or the mosquito larva B) Live in warmer areas of its habitat C) Eat pond grass and algae D) Go through the process of photosynthesis
A) Toothpick B) Plastic tube C) Copper wire D) Rubber band
A) roll it with more force B) make the surface of the ball rough C) roll it with less force
A) Volcanic activity B) Wind and water erosion C) Layering D) Great heat and pressure
A) The melting of an ice cube B) The emptying of air from a balloon C) The movement of air D) The movement of air
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 wooden spoon B) An aluminum spoon C) An iron spoon D) A silver spoon
A) A test tube B) A balance C) A telescope 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 |