Seasons
There are four seasons, name them.
winter, spring, summer, fall
It takes ___________ days for the earth to do a complete revolution around the sun
365
What causes day and night?
The roation of the earth
What is a solar eclipse?
When the moon blocks earth from receiving the sun's lightwaves in certain spots.
Why is earth in center of solar sysytem?
Largest object in our solar system which means it has the most gravity
When it is winter in the northern hemisphere, what is it in the southern hemisphere?
summer
During one revolution we have four seasons, what causes seasons?
The tilt of the earth
How long does one complete rotation of earth take?
24 hours
What is a lunar eclipse?
When the earth blocks the sun's lightwaves from landing on the moon.
What causes the planets to swirl around the sun on the plane of the ecliptic?
Gravity and Inertia
When it is summer in the northern hemisphere it is _____________ in the southern hemisphere
winter
Which season is it for us when the Northern Hemisphere is tilted towards the sun?
Summer
How many hours of daylight and how many hours of darkness are there every 24 hours?
12 of daylight and 12 of darkness
What do fish do during an eclipse?
They come to the surface of the water.
Why does the earth not fall into the sun?
Inertia
Two times a year the earth is tilted neither towards nor away from the sun, when are these two times?
spring and fall
Which season is it for us when the Northern Hemisphere is tilted away from the sun
Winter
Which side of the earth has night?
The side facing away from the sun.
Why don't we have a solar eclipse every time the moon goes between the earth and the sun?
The orbit of the moon is tilted relative to the orbit of the Earth around the sun, so the moon often passes below or above Earth.
What do scientist say started our solar sysytem 4.5 billin years ago?
The Big Bang-aginat explosion
What causes seasons? Why?
THe 23.5 degree tilt of the earth. It causes the earth to be heated unevenly. Direct light hits near the equator and angles light hits every where else.
WHat is an equinox? WHen does it happen?
Equal amounts of day and night. It happens in the spring and fall
WHich side of the earth has daylight?
The side facing the sun
Why do birds stop chirping during an eclipse?
They think it is nighttime.
Why do objects keep on moving through our solar system
Inertia causes them to want to move and there is no force of friction to slow them down.