Matter
What are the 3 states of matter
Solid, liquid, gas
What is the difference between a renewable and a non-renewable energy source?
Renewable energy can be naturally replaced (e.g., solar, wind); non-renewable energy cannot be replaced quickly (e.g., oil, coal).
What does Biotic mean?
Living
What is the order of planets
Mercury → Venus → Earth → Mars → Jupiter → Saturn → Uranus → Neptune
Climate change is
Long terms changes in the earths weather patterns and atmosphere
How is the movement of particles different in a solid compared to a gas?
In a solid, particles are packed closely together and only vibrate in place. In a gas, particles move freely and quickly in all directions.
What is the difference between compression and tension forces?
Compression squeezes or shortens materials, while tension stretches or pulls them apart.
What is the purpose of Wetlands
Filter water, prevent erosion, provide habitat
Difference between emit and reflect light? Give a natural example
Emit - give off - sun
Reflect - light from other sources bounces off - moon
How do greenhouse gases affect Earth’s temperature?
They trap heat in the atmosphere, making the Earth warmer.
If you leave a tray of water outside on a hot day, it eventually disappears. What happened to the water and what is the name of this process?
The water turned into water vapor and entered the air. This process is called evaporation.
A bridge collapses after too much weight is added. Which internal forces likely caused this failure?
Compression and tension forces may have exceeded the material’s limits.
Plants produce energy in the form of
Glucose (Sugar)
What is a satellite? What is the difference between a natural and artificial Satellite?
Anything orbiting the earth. Natural is something that occurs naturally like the moon. Artifical is something humans have placed in space.
How might climate change affect plants and animals?
Some species may lose their habitats or struggle to survive.
Why does a balloon shrink when you put it in the freezer?
When the air inside the balloon cools, the particles move slower and take up less space, causing the balloon to shrink.
Energy forces that require processing
fossil fuels, coal, gas
What ecosystem has the greatest biodiversity
Rainforest
Difference between rotation and revolution? How long do each take?
Rotation - 1 spin of the earth on its axis - 24 hours
Revolution - Earth move around the sun - 365 days
Which human activities helps increase oxygen in the atmosphere? (reduce Climate change)
Planting trees, carpooling, etc
You are given a mystery substance. It takes the shape of its container but keeps the same volume. What state of matter is it, and how do you know?
It is a liquid. Liquids take the shape of their container but keep the same volume, unlike gases, which also take the shape of the container but can expand or compress.
A student is designing a rubber toy that kids can twist, stretch, and squish without it breaking.
What three internal forces must the toy be able to withstand?
Tension, compression, torsion
If the population of rabbits decreases, what might happen to the foxes that eat them? Explain.
Foxes might have less food, so their numbers could decrease or they might hunt other animals.
Why is pluto no longer a planet? What makes something a planet?
It is too small and shares its orbit with other objects (a dwarf planet).
Name the spheres and what they are
Hydrosphere - water
Atmosphere - air
Biosphere - living things
Geosphere - land