The Earth’s atmosphere, the layer of air that surrounds the planet, is a protective blanket that shields us from harmful radiation and traps heat energy, storing warmth from the sun and keeping temperatures in a range that makes life possible. Animals need air to breathe, plants need it for photosynthesis, and living things also use air to fly, carry scents and sounds, and keep warm. With its many functions in our lives, it’s worthwhile exploring the nature of air.
Held in place by Earth’s gravity, the atmosphere is an envelope of air that extends outward from the surface for some 500 miles, becoming thinner and sparser with distance. Dry air is composed primarily of three gases, with nitrogen making up Continue reading Blanket of Air – Background
FOCUS: The air we breathe is part of the Earth’s atmosphere, a layer of gases that surrounds the planet, protecting us from harmful radiation and keeping us warm. Although air is invisible, we’ll discover that it takes up space, exerts pressure and has weight, can be heated, cooled, and compressed, and always seeks to equalize its pressure. It is important to understand our atmosphere, because without air, animals and plants could not survive.
Introduction: Ask the children, “What are some things you notice about air?” Or bring in an empty bag and hand it to a child, asking, “What’s in the bag?” Now twist the neck of the bag shut and have the child feel it again. Is the bag really empty? Continue reading Blanket of Air – Activities
Half Full or Half Empty?
Characters: Freddy Frog, Teddy Toad, Wilma Worm, Frieda Fish, Water Lily, Davy Dragonfly
Props: Two tea cups attached to stage, one on stick so it can tip.
Freddy Frog Look, Teddy Toad. My cup is half full.
Teddy Toad My cup is half empty. I always get less. Continue reading Blanket of Air – Puppet Show
BLANKET OF AIR ALIGNMENT WITH
NEXT GENERATION SCIENCE STANDARDS
The activities in this unit help children understand the basic concepts in the Disciplinary Core Ideas listed here. You can use the following list as a guide for lesson planning. These Disciplinary Core Ideas are taken from Grade Band Endpoints in A Framework for K-12 Science Education. Additionally, our activities give children opportunities to engage in many of the Science and Engineering Practices and reflect on the Crosscutting Concepts as identified in the Next Generation Science Standards. Continue reading Blanket of Air – Standards