Earth & Space Science
What causes day and night?
Earth rotates on its axis.
What do plants need to survive?
Water, sunlight, air, nutrients.
What is a force?
A push or a pull.
What is technology?
The use of tools and inventions to solve problems.
Recycling reduces _______________.
waste
Name two stages of the water cycle.
Evaporation, condensation, precipitation, collection.
Name the function of roots.
Roots absorb water and hold the plant in place.
Give an example of a push and a pull.
Push = closing a door; Pull = opening a drawer.
Name one type of simple machine.
Lever, pulley, wheel and axle, inclined plane, screw, wedge.
Name one way humans pollute water.
Dumping garbage or chemicals into water.
What tool measures rainfall?
Rain guage
What is an ecosystem.
A community of living and nonliving things interacting.
What are the three states of matter?
Solid, liquid, gas.
Why is safety tool protects you eyes?
safety goggles
How can we conserve electricity?
Turn off lights and unplug devices.
Which weather is best for drying clothes?
sunny
What adaptation help animals hide?
Friction usually makes objects move___________.
slower
The first step in designing something is to _________________.
Identify the problem
Explain one effect of littering on the environment.
Litter harms animals and pollutes land/water.
Describe how Earth’s rotation and revolution are different.
Rotation = spinning on axis; revolution = orbiting the sun.
Describe how plants and animals depend on each other in a food chain.
Plants provide food; animals help spread seeds and maintain balance.
A flashlight changes electrical energy into ____________ energy.
light
Solar panels use energy from the ____________.
Sun
Natural resources should be ______________.
conserved