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 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 C B) Mineral B C) They have the same hardness D) Mineral A
A) The number of fossils in the rock B) How the rock was formed C) How much sunlight the rock receives D) The forces of erosion
A) d B) c C) a D) b
A) Liquid to gas B) Liquid to solid C) Solid to liquid D) Gas to liquid
A) Pencil B) Ice Cube C) Milk D) Steam
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 counts the number of birds and squirrels in a park D) She puts a squirrel and a bird together in a cage for a week and observes them
A) Locate nectar filled flowers B) Stay warm C) Fly away quickly D) Frighten or confuse enemies
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 disposable plates B) Visit a landfill C) Use biodegradable materials
A) Which type of paper is most absorbent? B) Which type of paper is the most colorful? C) Which type of paper is the best buy? D) Which type of paper is safest for the environment?
A) Use maple syrup to test some paper towels and water to test other paper towels. 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 the same amount of water to test each paper towel.
A) Heat the mixture B) Use a magnet C) Use a magnifying glass D) Pour water on the mixture
A) Rubber B) Tin C) Water D) Aluminum
A) He can add more wires B) He can add more batteries C) He can add more light bulbs D) He could add bigger light bulbs
A) Brand M lasted longer than the other brands tested. B) Brand O was more expensive than the other brands tested. C) Brand L caused the light to shine farther than the other brands tested. D) Brand N gave off a stronger light 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) We can take votes and each person will vote for the bulb he or she thinks is the brightest. D) All of the bulbs look bright to me, so there cannot be an answer.
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 pond grass and algae B) Eat the valve snail or the mosquito larva C) Go through the process of photosynthesis D) Live in warmer areas of its habitat
A) Toothpick B) Copper wire C) Plastic tube D) Rubber band
A) roll it with less force B) roll it with more 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 emptying of air from a balloon B) The melting of an ice cube C) The movement of air D) The movement of air
A) Decide what he will conclude B) Gather several sets of different-sized objects made of the same material into water C) Ask friends what they think D) Place objects of different sizes and made of different materials into water
A) An iron spoon B) A wooden spoon C) An aluminum spoon D) A silver spoon
A) A test tube B) A telescope C) A balance 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 |