Matter and its Interactions
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 the physical matter they needs 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 9am, 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 9pm instead of 9am.
B. Collect her data at 9am and 9pm each day.
C. Collect her data only on cold days.
D. Collect her data only on Mondays.
B. Collect her data at 9am and 9pm 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 original 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 fungus decomposing the dead organisms.
D. Through the soil absorbing sunlight.
C. By bacteria and fungus decomposing the dead organisms.
Which of the following best explains the reason for a low amount of life in a dry 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 best help her in her research?
Ruler
Avery Arable added baking soda to vinegar in a glass flask. It began to bubble when it reacted. In the end, 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.
C. 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 pond water to find micro-organisms.
C. To measure the forces of objects.
D. To compare the masses of objects.
B. Collecting pond water 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 a desert. Which of the following would best explain this situation?
A. The desert has more water.
B. The forest has less 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 by 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 summarize his results the best?
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 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 preserve the native animals and plants in a forest?
A. Prohibit 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 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 water surrounding Mangrove Trees.
D. In water surrounding Mangrove Trees.