Earth’s Water (S.5.8)
Most of Earth’s freshwater is found here.
👉 Answer: Glaciers/ice caps
Why does the sun appear brighter than other stars?
Answer: It is closer to Earth
What causes day and night?
Answer: Earth’s rotation
What is a design problem?
Answer: A problem that can be solved by creating something
What causes shadows to form?
Answer: Light being blocked
This type of water makes up most of Earth’s total water.
Answer: Saltwater (oceans)
True or False: The sun is the biggest star in the universe
Answer: False
What happens to shadows during the day?
Answer: They change length and direction
What are criteria?
Answer: What the solution must do
Where is most saltwater found?
Answer: Oceans
Why can’t humans easily use most freshwater?
Answer: It is frozen or underground
What actually determines how bright a star appears from Earth?
Answer: Distance
When are shadows longest?
Answer: Morning and evening
What are constraints?
Answer: Limits (time, materials, cost)
Why don’t we feel Earth rotating?
👉 Answer: It moves at a constant speed
Which has MORE usable water: rivers or glaciers? Why?
Answer: Rivers, because glacier water is frozen
Two stars are the same size. One looks brighter. Why?
Answer: It is closer
Why do shadows change position?
Answer: The sun appears to move as Earth rotates
Give an example of a constraint in building a bridge
Answer: Limited materials or budget
Why is the sun important for life on Earth?
Answer: Provides light and energy
Explain why freshwater is considered a limited resource.
Answer: Only a small percent is accessible for use
Explain why stars look small in the night sky.
Answer: They are very far away
What pattern do stars follow in the sky over time?
Answer: Seasonal patterns (different constellations appear)
Why are criteria and constraints important?
Answer: They guide and limit solutions
Explain one pattern you see in nature and why it happens
Answer: (Any valid example + explanation)