Book #3 and #4 Flashcards
What does emit mean?
Creating light or to give off its own light.
What is one fact about the layer Troposphere?
Weather formed in the Troposphere
What is one fact about the layer Stratosphere?
Ozone layer, jet streem
What is one fact about the layer Mesosphere?
Stops meteors, coldest
What is one fact about the layer Thermosphere?
Hotest, widest, and the least air molecules
What is one fact about the layer Ionosphere?
Electrically charged ions, northern lights
What is one fact about the layer Exosphere?
Satellites orbit
What are three reasons why our planet Earth is the only planet in our solar system that we know is able to support life?
- Liquid water
- Breathable atmosphere
- Right distance from the sun (temperature)
What does reflect mean?
Something that emits light shines on it so it looks like that is glowing when it is just copying something that emits light
What positions do the earth, moon and sun have to be in the be a partial or total solar eclipse to occur?
SUN————————————————MOON—-EARTH
Why does the sun appear to move across the sky each day?
The earth’s rotation on its axis
Why is it harmful to look at the sun? What are two safe methods for viewing the sun?
you can have eye damage on your eyes if you look at the sun directly from the UV rays
- Using a pinhole camera
- Welder’s mask
What is the difference between direct and indirect (slanted) rays from the sun?
Direct: EARTH————————-SUN
Indirect: ————————-SUN
EARTH
Direct are the strongest rays because they are strate on.
Indirect are the weakest rays because they are angled.
What are the two reasons that earth
tilt of the axis and the revolution of the earth
How do the seasons compare in the northern and southern hemisphere
opposite from us
