Matter & Forces
Copper can be stretched out into wires and used to carry electricity. It is shiny, and it can be hammered into flat pieces. What type of material is copper?
A. It is a sedimentary rock.
B. It is a type of wood.
C. It is a plastic.
D. It is a metal.
D. It is a metal.
A Bromeliad falls off a tree. The gravity of Earth _____ .
A. Pulls objects towards its center.
B. Pulls objects to the east.
C. Pushes on all objects on Earth.
D. Pushes objects towards the atmosphere.
A. Pulls objects towards its center.
What provides plants with the physical matter they need for growth?
A) Absorbing water and sunlight
B) Absorbing air and water.
C) Eating other plants.
D) Absorbing soil.
B) Absorbing air and water.
Which of the following is the best reason why the Sun is the brightest star in the sky?
A) It is the star with the most mass.
B) It is the star with the most volume.
C) It is the hottest star in the universe.
D) It is the closest star to Earth.
D) It is the closest star to Earth.
Every day at 9 am, Tia records the number of flies captured by a group of Venus Flytraps. Which of the following could improve her study?
A) Collect her data at 9 pm instead of 9 am.
B) Collect her data at 9 am and 9 pm each day.
C) Collect her data only on cold days.
D) Collect her data only on Mondays.
B) Collect her data at 9 am and 9 pm each day.
Charlette Cavatica placed salt water in a beaker and left it on her desk for a week. After a week, there was only salt. Which best explains the missing water from the beaker?
A. The water became a new substance.
B. The water evaporated.
C. The water disappeared forever.
D. The water condensed.
B. The water evaporated.
A grasshopper eats plants. A cat eats the grasshopper. What is the source of the energy in this situation?
A. Cat
B. Grasshopper
C. Plants
D. Sun
D. Sun
How do nutrients from dead organisms return to the soil of Earth?
A) Through insects pollinating plants.
B) By animals eating plants.
C) By bacteria and fungi decomposing the dead organisms.
D) Through the soil absorbing sunlight.
C) By bacteria and fungi decomposing the dead organisms.
Which of the following best explains the reason for a low amount of life in a desert?
A. High levels of light and water.
B. High levels of light and nutrients in the soil.
C. High temperatures and low levels of water.
D. Low temperatures and a very moist soil.
C. High temperatures and low levels of water.
Molly believes the wings of a species of butterflies are larger next to a pond by her home than deep in the woods by her school. Which tool would be most helpful to her in her research?
A) Microscope
B) Scale
C) Ruler
D) Test Tubes
C) Ruler
Avery Arable added baking soda to vinegar in a glass flask. It began to bubble when it reacted. Ultimately, she was left with water and carbon dioxide. Which of the following is true?
A. It was a physical change since new substances were formed.
B. It was an example of precipitation.
C. It was a chemical change since new substances were formed.
D. It was a physical change since she changed the substances physically.
It was a chemical change since new substances were formed.
What gives a puppy the energy to run around?
A) Water
B) Food
C) Gravity
D) Magnetism
B) Food
What allows plants to make food?
A) Plants absorb non-living matter and sunlight.
B) Plants absorb living matter and food.
C) Plants decompose dead organisms.
D) Plants eat other organisms.
A) Plants absorb non-living matter and sunlight.
Where is the largest supply of fresh water on Earth?
A) Lakes
B) Rivers
C) Polar Ice Caps
D) Oceans
C) Polar Ice Caps
Which of the following would make the best use of test tubes and a microscope?
A) Collecting insects to compare their feeding habits.
B) Collecting pondwater to find micro-organisms.
C) To measure the forces of objects.
D) To compare the masses of objects.
B) Collecting pondwater to find micro-organisms.
Thurston Howell placed a glass of liquid water outside on a very cold night in Alaska. The next day, the water was solid ice. What caused this to happen?
A. The particles of water slowed down, and the water froze.
B. The particles of water sped up, and the water froze.
C. The water evaporated when the particles of water sped up.
D. It was a chemical change.
A. The particles of water slowed down, and the water froze.
The _____ of gravity pulls objects towards the center of Earth.
A) Volume
B) Color
C) Force
D) Light Energy
C) Force
Stanley Roper was able to see many more living organisms in a forest than in a desert. Which of the following would best explain this situation?
A. The desert has more water.
B. The forest has fewer nutrients in the soil.
C. The desert has more sunlight.
D. The forest has more water, which allows more plants and food for animals.
D. The forest has more water, which allows more plants and food for animals.
Which of the following would best reduce pollution in streams and ponds located near farms?
A) Dump animal wastes in local ponds.
B) Heavy borders of vegetation at the edges of crop fields to filter out fertilizers.
C) Increase the use of pesticides to reduce insects on the crops.
D) Record crop growth data in computers daily instead of weekly.
B) Heavy borders of vegetation at the edges of crop fields to filter out fertilizers.
Tommy was testing the speed of a toy car on a ramp. He recorded the speed of the car each time he changed the slope of the ramp. Which would best summarize his results?
A) Decrease the slope, speed increases.
B) Increase the slope, speed decreases.
C) Increase the slope, speed increases.
D) The slope does not change the speed.
C) Increase the slope, speed increases.
Artie Bucco is using a frying pan. What type of material would best be used for the pan?
A) A plastic pan so it could melt.
B) A stone pan since it conducts heat very well.
C) An iron pan since it conducts heat very well.
D) An iron pan since it insulates heat very well.
C. An iron pan since it conducts heat very well.
Which allows plants to absorb energy to produce sugars?
A) Its leaves
B) Its stem
C) Its roots
D) Its seeds
A) Its leaves
Water Lilies float on the top of the water. How do they obtain most of the physical materials needed to make food?
A) Water where they are floating and the surrounding air.
B) Sunlight and Water.
C) Insects and Birds.
D) Insects and Sunlight
A) Water where they are floating and the surrounding air.
Which of the following would best preserve the native animals and plants in a forest?
A) Prohibit the construction of buildings and avoid introducing new animals and plants.
B) Replace trees with bushes.
C) Introduce new animals and plants to the forest.
D) Help growth with fertilizers.
A) Prohibit the construction of buildings and avoid introducing new animals and plants.
Which environment would be best to find micro-organisms with an eye dropper?
A) In the sand of a desert.
B) On stones in a forest.
C) Inside fossils found in a cave.
D) In the water surrounding Mangrove Trees.
D) In the water surrounding Mangrove Trees.
What are the characteristics of the metal pieces of this satellite?
A) Brittle, good conductors, and dull in color.
B) Soft, flexible, and are great insulators.
C) Brittle, weak, and they are good insulators.
D) Easily pounded into sheets, can be pulled into shapes of wires, and conducts heat and electricity.
D) Easily pounded into sheets, can be pulled into shapes of wires, and conducts heat and electricity.
Where would a magnifying glass have the most potential energy in reference to the same cactus?
A. On top of the cactus.
B. Halfway down the cactus.
C. Almost on the ground next to the cactus.
D. On the ground next to the cactus.
A. On top of the cactus.
Which best describes an arctic fox and a polar bear both hunting mice in the same area?
A. Parasitism
B. Mutualism
C. Competition
D. Commensalism
C. Competition
When moss reproduces by spores, how is this linked to the offspring of moss plants?
A. The offspring can be very different than the parent.
B. The offspring is identical to the parent.
C. Pollination allows variety among offspring.
D. Fruit allows variation among offspring.
B. The offspring is identical to the parent.
What best allows the planets to orbit our Sun?
A. The tilt of the axis of the planets.
B. The pull of gravity of the Sun on the planets
C. The push of gravity of the Sun on the planets.
D. The power of light rays from the Sun on the planets.
B. The pull of gravity of the Sun on the planets
Carbon dioxide (clear gas) and water (clear liquid) are converted into sugar (white solid) during photosynthesis. What type of change occurred?
A) Physical: a new substance was formed.
B) Physical: a mixture was formed.
C) Chemical: a new substance was formed.
D) Chemical: a solution was formed.
C) Chemical: a new substance was formed.
A grasshopper, a chick, a rabbit, and a donkey are all traveling at the same speed. Which one has the most kinetic energy?
A. Grasshopper
B. Chick
C. Rabbit
D. Donkey
D. Donkey
Which best explains the cycle of carbon in a rainforest?
A) Plants give animals carbon dioxide, while animals give plants oxygen.
B) Plants give fungus carbon dioxide, while fungus gives plants oxygen.
C) Fungi give animals oxygen, while animals give fungi carbon dioxide.
D) Animals eat plants, while plants obtain carbon dioxide from animals.
D) Animals eat plants, while plants obtain carbon dioxide from animals.
Which of the following best allows a variation of flower colors of a plant?
A. Use of spores.
B. Use of regeneration.
C. Use of flowers and seeds.
D. Use of budding.
C. Use of flowers and seeds.
Why are temperatures in a desert by the equator higher than at the north and south poles?
A. The equator receives less direct sunlight.
B. The equator has more water.
C. The north and south poles receive more direct sunlight.
D. The north and south poles receive less direct sunlight.
D. The north and south poles receive less direct sunlight.
Car 1 is moving and hits car 2 that is not moving. Which of the following is the result?
A) The force of car 1 will cause car 2 to accelerate forward.
B) The force of car 1 will cause car 2 to decelerate forward.
C) The area of car 1 will cause car 2 to accelerate forward.
D) The speed of car 1 will cause car 2 to decelerate forward.
A) The force of car 1 will cause car 2 to accelerate forward.
Which types of waves best allow bats to fly and find food in the dark at night?
A. Light
B. Sound
C. X-Rays
D. Magnetic
B. Sound
Which best explains the low variety of life in areas of dunes?
A) High Levels of Sunlight, Low Water Supply.
B) Low Levels of Sunlight, High Water Supply
C) Low Levels of Sunlight, Low Water Supply.
B) High Nutrients in Soil, High Levels of Sunlight.
A) High Levels of Sunlight, Low Water Supply.
What would allow a green grasshopper to survive best in a green environment?
A. Learned Behavior
B. Instinct
C. Reflex
D. Camouflage
D. Camouflage
Which of the following would most likely cause beach erosion?
A. Adding artificial reefs.
B. Addition of vegetation on or near the beach.
C. Removal of vegetation on or near the beach.
D. Planting mangrove trees on the coast of the beach.
C. Removal of vegetation on or near the beach.
Which of the following is the best example of two non-contact forces acting on each other?
A. Heating an iron pan on a hot stove.
B. Two magnets of the same charge are pushing away from each other.
C. A man pushing on a wall, and the wall is not moving.
D. A ball bouncing off the ground.
B. Two magnets of the same charge are pushing away from each other.
Which term best describes this diagram?A) Diffraction
B) Rarefaction
C) Reflection
D) Absorption
C) Reflection
Which of the following will improve the ecosystem of a swamp?
A. Create dams by the swamp.
B. Filter water entering the swamp.
C. Drain the water and build houses.
D. Increase fertilizer by streams that feed the swamp.
B. Filter water entering the swamp.
Which characteristics best allow a cactus to survive in a desert?
A. Very shallow roots and flat leaves.
B. Thick roots and no flowers.
C. Waxy coating and spines.
D. Ability to filter out salt and avoid pollution.
C. Waxy coating and spines.
Which formation of rocks would most likely prevent the formation of fossils?
A. Evaporation of water, leaving minerals.
B. Cooling of magma, forming rocks.
C. Sediments piling on top of each other, forming sedimentary rock.
D. Sap of a tree surrounding insects forming amber.
B. Cooling of magma, forming rocks.
When water is heated to its boiling point, the molecules of the water __________ .
A) Separate from each other and become a gas.
B) Move closer together and become a gas.
C) Separate from each other and become a liquid.
D) Reduce in vibrations and become a solid.
A) Separate from each other and become a gas.
As an acorn drops from a branch of a tree to the ground, ______.
A) Kinetic energy is converted into potential energy.
B. Potential energy is converted into kinetic energy.
C. Kinetic energy is reduced.
D. Potential energy is increased.
B. Potential energy is converted into kinetic energy.
Which organelle in plant cells allows a plant to stand up strong even though it does not have bones?
A. Nucleus
B. Mitochondria
C. Chloroplasts
D. Cell Walls
D. Cell Walls
Mr. Crowley placed the same species of cattails in the same water and soil in a closet, dark room, a medium-lit room, and next to a window. What was he testing in relation to growth?
A. Nitrogen
B. Nutrients
C. Water
D. Light
D. Light
Which scientific tool would best be used to collect samples of pond water?
A. Test Tubes
B. Electronic Scale
C. Magnet.
D. Magnifying Glass.
A. Test Tubes