Life Science
4th Grade Science I
4th Grade Science II
100
Best describes the function of stomata in plants: a. convert carbon dioxide, oxygen, and water into food energy b. allow gases and water to enter and exit a plant c. circulate minerals through the plant d. transport carbon dioxide and oxygen through the plant
What is (b.) allow gases and water to enter and exit a plant?
100
The main source of energy in a food chain: a. producers b. herbivores c. carnivores d. omnivores
What is (a.) producers?
100
An example of an abiotic factor (not alive): a. worm b. human c. water d. microorganism
What is (c.) water?
200
The process that best describes what happens when plant seeds are carried away from a plant on animal fur or in animal waste. a. seed shelter b. seed distance c. seed collection d. seed dispersal
What is (d.) seed dispersal?
200
Recycler of matter from dead plants and animals: a. fungus b. grass c. cactus d. gopher
What is (a.) fungus?
200
The kind of rock that forms when sand is pressed together in layers.
What is a sedimentary rock?
300
The following best describes what cells are: a. membranes that control the movement of materials b. tube-like structures that go up and down in plants c. smallest units of living things that can carry out the basic processes of life d. large specialized structures that work together to do a job
What is (c.) smallest units of living things that can carry out the basic processes of life?
300
The following BEST describes an electric current: a. a series of electrical wires b. a flow of electrical charges (electrons) c. a surge of electrical power d. a chain of electrical batteries
What is (b.) a flow of electrical charges (electrons)?
300
This happens when lightning strikes the ground: a. electricity flows from earth to lakes b. electricity is released from the earth c. electricity flows from the clouds to Earth d. electricity is released from lakes
What is (c.) electricity flows from the clouds to Earth?
400
The part of a plant cell that breaks down food into energy: a. cytoplasm b. mitochondrion c. cell wall d. vacuole
What is (d.) vacuole?
400
A mushroom helps a log decompose into the soil. What do you predict will happen to the soil in the area? a. It will grow new plants well. b. It will not grow new plants well. c. It will decompose also. d. It will become polluted.
What is (a.) It will grow new plants well?
400
Vibrations caused by an earthquake are felt in the: a. fault b. mountains c. crust d. "Ring of Fire"
What is (c.) crust?
500
The following structure allows plants to make their own food: a. mitochondria b. chloroplasts c. vacuoles d. cell walls
What is (b.) chloroplasts?
500
The following could happen in an area that has too many predators and not enough prey: a. The animals will learn to adapt. b. More predators will move to the area. c. The predators will not find as much food. d. The predators will help each other.
What is (c.) The predators will not find as much food?
500
Electrical energy can be converted into all of the following EXCEPT: a. heat b. light c. motion d. darkness
What is (d.) darkness?
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