1 / 5

Solar Energy

Solar Energy. Investigation 2 – Heating the Earth. Part 1 – Thermometer in Sun and Shade. Main Ideas/Content The Sun does not heat the Earth evenly Near the equator is always hot, while the poles are always cold Temperature in sunlight is usually higher than temperature in shade.

fell
Download Presentation

Solar Energy

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Solar Energy Investigation 2 – Heating the Earth

  2. Part 1 – Thermometer in Sun and Shade Main Ideas/Content • The Sun does not heat the Earth evenly • Near the equator is always hot, while the poles are always cold • Temperature in sunlight is usually higher than temperature in shade. Vocabulary Words • Thermometer – a tool to measure temperature • Elapsed time – the difference between a starting time and an ending time

  3. Part 2 – Heating Earth Materials Main Ideas/Content • Water heats up more slowly and cools down more slowly than solid, dry earth materials. • Water is a good example of a heat sink. • Earth’s atmosphere is made up of mostly nitrogen, but also oxygen, carbon dioxide and water vapor (water in its gas state). • Gravity pulls gas molecules down to Earth. • Air near the Earth’s surface is under a lot of pressure.

  4. Part 2 – Heating Earth Materials Main Ideas/Content • Warm air is less dense than cold air, so warm air rises and cool air sinks. • Air always moves from areas of high pressure (cooler) to areas of low pressure (warmer) – this is called wind. • Some warm ocean water will evaporate into the atmosphere and become water vapor. • Most water that falls on the land will flow back to the ocean, continuing the water cycle. • When a cold front forms, heavy rains and strong winds can occur (thunderstorms). • When a warm front forms, the cold air moves slowly and rainy weather may last for days.

  5. Part 2 – Heating Earth Materials Vocabulary Words • Earth Material – a nonliving substance that makes up or comes from the earth. • Energy transfer– the change of energy from one form to another (such as light to heat), OR the movement of energy from one object to another (such as heat moving from air to soil or water). • Heat sink – a material, such as water, that can absorb a large amount of heat for its volume and release the energy slowly. • Matter – anything that takes up space and has mass; it can be a solid, liquid, or gas. • Convection – the flow of warm air up and cool air down. • Water cycle – water evaporating from the ocean, forming clouds, falling on land, and flowing back to sea. • Fronts – leading boundaries of warm and cold air moving around Earth.

More Related