Matter
What happens during melting and freezing?
During melting, a solid becomes a liquid. During freezing, a liquid becomes a solid.
What is needed for photosynthesis?
Water, Carbon Dioxide (CO2), and Sunlight (energy from light).
What is the difference between a food chain and food web?
Food chain shows one flow of energy. Food web shows many flows of energy.
What is deposition?
Deposition is where sediment is dropped off (it can pile up over time).
Beacuse Earth is spinning (rotating).
What happens during condensation and evaporation?
Condensation occurs when a gas turns into a liquid. Evaporation occurs when a liquid turns into a gas.
What is created (produced) during photosynthesis?
Oxygen and Glucose
Put these items in the correct order to make a food chain:
hawk
sun
corn
mouse
sun --> corn --> mouse --> hawk
What is the difference between weathering and erosion?
Weathering - breaks down rock and other structures over time
Erosion - the movement of sediment from one area to another
What is the difference between a decomposer and a scavenger?
Decomposer: breaks down dead animals and waste and returns the nturients back into the soil (like bacteria, worms, mushrooms)
Scavenger: just eats dead stuff (like a vulture)
What is the difference between a mixture and a solution?
The sun!
1. Herbivore: eats plants only
2. Carnivore: eats meat only
3. Omnivore: eats plants and animals
How long does it take Earth to make a rotation?
24 hours (1 day)
What causes seasonal changes?
Earth's orbit around the sun.
What is the difference between a chemical and a physical change?
A chemical change is where one or more types of matter change into something else (creates a new thing). A physical change is where it still is what it is (it doesn't create something new).
What is the difference between producers and consumers?
Producers are plants - they make their own food. Consumers are animals - they cannot make their own food.
What is the difference between migration and hibernation?
Migration is where animals flee a place to go somewhere else.
Hibernation is where animals sleep during cold winter months.
How long does it take Earth to make a revolution?
365 days (or 365.25 days) = 1 year
1. Color change
2. Bubbles forming
3. Smell/Odor
4. Change in texture (think of smoothing down wood)
Describe solids, liquids, and gases.
Solids have a definite shape and volume. Liquids have a definite volume but no definite shape. Gases have no definite shape or volume. Solids are close together and can vibrate in place, liquids are spread out evenly, and gases are spread out much farther and move all over the place.
What is the scientific term for sugar?
Glucose
What is competition? Be specific.
Competition is where plants and animals compete for resources - (space to live, food, water...)
Name all 4 of Earth's Spheres. Extra points (500) if you can describe what they are after naming them!
Biosphere
Geosphere
Hydrosphere
Atmosphere
What is the freezing and boiling points of water?
0 degrees Celsius.