🌍 Earth & Space Science
What causes day and night on Earth?
A. Earth orbits the Sun
B. Earth rotates on its axis
C. The Moon moves
D. Clouds block the Sun
B. Earth rotates on its axis
What do plants need to make their own food?
A. sunlight, water, carbon dioxide
B. soil only
C. oxygen only
D. animals
A. sunlight, water, carbon dioxide
Matter is anything that:
A. moves fast
B. has mass and takes up space
C. is alive
D. is invisible
B. has mass and takes up space
What is the first step in the scientific method?
A. draw conclusions
B. ask a question
C. record data
D. make a graph
B. ask a question
Energy is the ability to:
A. sleep
B. do work
C. sit still
D. grow plants
B. do work
What is the main source of energy for Earth?
A. the Moon
B. the Sun
C. wind
D. water
B. the Sun
Which system carries oxygen through the body?
A. digestive system
B. circulatory system
C. nervous system
D. skeletal system
B. circulatory system
What state of matter has a definite shape and volume?
A. liquid
B. gas
C. solid
D. plasma
C. solid
What is a hypothesis?
A. a proven fact
B. a question
C. an educated guess
D. data
C. an educated guess
Which is a form of energy?
A. rock
B. light
C. sand
D. soil
B. light
What causes the phases of the Moon?
A. Earth’s shadow
B. the Moon’s position around Earth
C. clouds
D. sunlight changing
B. the Moon’s position around Earth
What is an ecosystem?
A. one animal
B. a group of people
C. living and nonliving things interacting
D. a plant only
C. living and nonliving things interacting
What happens when you heat a solid?
A. it freezes
B. it may melt into a liquid
C. it disappears
D. it turns into gas immediately
B. it may melt into a liquid
What is a variable in an experiment?
A. something that changes
B. the answer
C. the conclusion
D. the question
A. something that changes
What type of energy is stored energy?
A. kinetic
B. potential
C. thermal
D. sound
B. potential
Which layer of Earth is the hottest?
A. crust
B. mantle
C. outer core
D. inner core
D. inner core
Which is a producer?
A. lion
B. mushroom
C. grass
D. human
C. grass
Which is an example of a chemical change?
A. cutting paper
B. melting ice
C. rusting metal
D. breaking glass
C. rusting metal
Why do scientists repeat experiments?
A. to waste time
B. to make sure results are reliable
C. to change answers
D. to confuse others
B. to make sure results are reliable
What type of energy is energy of motion?
A. potential
B. kinetic
C. chemical
D. electrical
B. kinetic
What is weathering?
A. movement of rock
B. breaking down of rock into smaller pieces
C. melting of rock
D. forming of mountains
B. breaking down of rock into smaller pieces
What is the role of decomposers?
A. make food
B. hunt animals
C. break down dead organisms
D. produce oxygen
C. break down dead organisms
What is force?
A. energy
B. a push or pull
C. motion
D. weight
B. a push or pull
What is data?
A. opinions
B. guesses
C. information collected during an experiment
D. questions
C. information collected during an experiment
What happens when energy is transferred?
A. it disappears
B. it moves from one place to another
C. it is destroyed
D. it stops working
B. it moves from one place to another