All About Earth
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Transcript of All About Earth
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All About Earth
Eric AngatTeacher
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Essential Question
How do I describe our planet?
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•The Sun powers photosynthesis.•The Sun makes our planet warm.
1. Give two reasons why the Sun is so important.
heat
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2. Give two reasons why we need plants.
Lessens greenhouse gases or CO2.
•We need plants to have food & oxygen.•We need plants to slow down global warming.
food
O2
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Atmosphere – air that envelopes Earth.
3. What is the most abundant gas in the atmosphere? Abundant=plentiful
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Hydrosphere describes the combined mass of water found on, under, and over the surface of a planet.
4. How much of Earth is covered with water?
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5. How many percent of Earth’s water is readily usable to us?
Not readily usable because of its salt content
Not readily usable because it is solid.
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Seasons and distance from the Sun
http://dolio.lh.net/~apw/astro/sun.html
Winter-USASummer-USA
Summer-Australia
Winter-Australia
Far
Near
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summer
winter
Southern hemisphere is tilted towards the Sun.
Northern hemisphere is tilted away from Sun.
6. What causes the seasons on Earth?
Earth’s tilt and its revolution around the Sun produce seasons.
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EQUATOR
Amazon rainforest
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https://www.youtube.com/watch?v=KUF_Ckv8HbE
Maps That Prove You Don't Really Know Earth
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December-February- SUMMERMarch-May - FALL.June-August- WINTER.September-November - SPRING
SEASONS in Buenos Aires Argentina: The 4 Seasons
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Copy and answer the following questions.
7. What is the atmosphere?8. What is the hydrosphere?9. How does the cycle of oxygen and
carbon dioxide happen?10. What are the four layers of Earth?11. What is rotation?12. What is revolution?
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https://www.youtube.com/watch?v=C34BW3fwtE4
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Copy and answer the following questions.7. What is the atmosphere?
8. What is the hydrosphere?
9. How does the constant cycle of oxygen and carbon dioxide happen?
is the air that surrounds Earth.
is the sum of all the water on Earth.
Plants use carbon dioxide and create oxygen and we use oxygen and create carbon dioxide.
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Copy and answer the following questions.10. What are the four layers of Earth?
11. What is rotation?
12. What is revolution?
Crust, mantle, outer core, and inner core.
Spinning of a planet or a moon on its axis. This causes day and night.
Earth and other planets moving around the Barycenter. Earth’s tilt as it revolves around the Sun causes seasons.