Earth & Space
Question: What causes day and night on Earth?
Earth’s rotation
What are the three common states of matter?
Solid, liquid, and gas
What force slows things down when fall?
Air resistance
What do plants need to survive?
Sunlight, water, air
What tool is used to measure temperature
Thermometer
Question: What is the name of the force that pulls objects toward Earth?
Gravity
Which state of matter keeps its own shape?
Solid
What happens when you push an object harder?
It moves faster or farther
What is pollution?
Harmful materials entering the environment
What is a hypothesis?
A prediction that can be tested
or
Scientific/Educated Guess
Why does the Sun appear brighter than other stars?
Because it is much closer to Earth
What is a mixture?
Two or more substances combined
Where does gravity pull objects towards?
The center of earth
What is deforestation
Cutting down too many trees
What is a drought?
A long period with very little rain
What causes seasons on Earth
Earth’s tilt and orbit around the Sun
What happens to water when it is heated?
Evaporation
Why does a ball eventually stop rolling?
gravity slow it down
Name two ways humans can protect Earth’s resources.
Recycling, conserving water, planting trees
Why do floods happen?
Too much water falls too quickly or rivers overflow
Explain how shadows change throughout the day.
Shadows change length and direction because Earth rotates and the Sun appears to move across the sky.
: A student mixes sand and water. What method could separate them?
Filtration system
Gravity is a ...?
Force
Explain how pollution can affect animals
Pollution can destroy habitats, poison water, make animals sick, or reduce food sources.
What type of storm forms over warm ocean water?
A hurricane