安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
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- Sun - Education | National Geographic Society
The sun is an ordinary star, one of about 100 billion in our galaxy, the Milky Way The sun has extremely important influences on our planet: It drives weather, ocean currents, seasons, and climate, and makes plant life possible through photosynthesis
- Sun - Education | National Geographic Society
The sun has extremely important influences on our planet: It drives weather, ocean currents, seasons, and climate, and makes plant life possible through photosynthesis The sun is an ordinary star, one of about 100 billion in our galaxy, the Milky Way
- Sun - Education | National Geographic Society
The sun is an ordinary star, one of about 100 billion in our galaxy, the Milky Way The sun has extremely important influences on our planet: It drives weather, ocean currents, seasons, and climate, and makes plant life possible through photosynthesis
- The Reason for the Seasons - National Geographic Society
Ask students to orally explain how the interaction between the sun and Earth affects seasons here on Earth, and what happens with the sun's rays during the different seasons Encourage them to use vocabulary terms axis, tilt, direct sunlight, and indirect sunlight in their responses
- Earth - Education | National Geographic Society
Earth is the third planet from the sun, after Mercury and Venus, and before Mars It is about 150 million kilometers (about 93 million miles) from the sun This distance, called an astronomical unit (AU), is a standard unit of measurement in astronomy Earth is one AU from the sun
- Solar Energy - National Geographic Society
Solar energy is constantly flowing away from the sun and throughout the solar system Solar energy warms Earth, causes wind and weather, and sustains plant and animal life The energy, heat, and light from the sun flow away in the form of electromagnetic radiation (EMR)
- Ozone Layer - Education | National Geographic Society
Like a sponge, the ozone layer absorbs bits of radiation hitting Earth from the sun Even though we need some of the sun's radiation to live, too much of it can damage living things The ozone layer acts as a shield for life on Earth
- Mars Questions? We’ve Got Answers. - National Geographic Education Blog
It is closer to the sun than Mars and has a warming atmosphere On Mars, H 2 O today can only exist as gas and ice because the atmosphere is very thin and Mars is 1 54 times farther from the sun as compared to Earth It makes Mars very cold
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