hello
here are 12 questions at least answer 5 of them
Why is the sky blue?
Why does the moon appear in the daytime?
How much does the sky weigh?
How much does the Earth weigh?
How do airplanes stay in the air?
Why is water wet?
What makes a rainbow?
Why don't birds get electrocuted when they land on an electric wire?
Answers
Answer:
Why is the sky blue?
Thus, as sunlight of all colors passes through air, the blue part causes charged particles to oscillate faster than does the red part. … More of the sunlight entering the atmosphere is blue than violet, however, and our eyes are somewhat more sensitive to blue light than to violet light, so the sky appears blue.
Why does the moon appear in the daytime?
We can see the moon during the day for the same reason we see the moon at night. The surface of the moon is reflecting the sun’s light into our eyes. … “When we see the moon during the day it’s because the moon is in the right spot in the sky and it’s reflecting enough light to be as bright, or brighter, than the sky.”
Explanation:
How much does the sky weigh?
This means the sky weighs 14.7 lbs per square inch of earth surface which is roughly 11 billion billion pounds. So, you can say that sky weighs one millionth of the mass of the Earth.
How do airplanes stay in the air?
Four forces keep an airplane in the sky. They are lift, weight, thrust and drag. Lift pushes the airplane up. The way air moves around the wings gives the airplane lift
Why is water wet?
“Water is wet because when something is wet, it has water on it and on a molecular level, water molecules are bonded on top of each other, therefore water is wet.” An extension to the previous argument that a couple of students brought up was that one water molecule alone is not wet, but when water molecules touch each
What makes a rainbow?
A rainbow is caused by sunlight and atmospheric conditions. Light enters a water droplet, slowing down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, separating into its component wavelengths–or colors. When light exits the droplet, it makes a rainbow.
Why don’t birds get electrocuted when they land on an electric wire?
The copper in electrical wires is a great conductor. Birds are not good conductors. That’s one reason they don’t get shocked when they sit on electrical wires. The energy bypasses the birds and keeps flowing along the wire instead.
Do aliens exist?
With next-generation telescopes, tiny space probes, and more, scientists aim to search for life beyond our solar system—and make contact.
Where do birds go in the winter?
This means that millions of birds fly from north to south each winter, and then they head back north when the temperatures warm up. In the winter, many birds can be found in southern cities, where food sources like nectar or insects are available.
Why is the ocean blue?
The ocean is blue because water absorbs colors in the red part of the light spectrum. Like a filter, this leaves behind colors in the blue part of the light spectrum for us to see.