Planets
Which planet is a dwarf planet?
Pluto
Without gravity, what would happen?
We would float away.
Which gas makes up most of the air we breathe?
Nitrogen. It accounts for about (78) of Earth's atmosphere.
What do we call energy sources that nature can replace in a short amount of time, like wind and solar?
Renewable energy.
How long does it take for Earth to complete one full rotation?
About 24 hours, which is the exact length of one full day.
How many planets are there?
Is gravity a push or a pull?
pull
What instrument is used to measure atmospheric pressure
A Barometer
What energy is used for solar panels to a fuse as electric use for other devices or devices?
Sunlight
Day and night. As the Earth spins, the side facing the Sun experiences daylight, while the side facing away experiences darkness (night).
Which planet is the hottest?
Venus with a temperature of 867 F
What is gravity?
Answer: An invisible force that pulls any two objects with mass toward each other.
In which layer of the atmosphere does all of our daily weather occur?
The troposphere (the lowest layer).
What form of energy powers the electrical devices in your home, which is caused by the movement of electrons?
Electrical energy.
Does the Sun move across the sky?
No! It just looks that way. Because Earth rotates from West to East, the Sun appears to "rise" in the East and "set" in the West.
Which planet does not experience seasons?
Mercury
What keeps Earth in orbit around the Sun?
It is the point in a body where the resultant gravitational force acts; it may lie inside or outside the body.
Nitrogen (78%) and Oxygen (21%).
What is the main source of energy for almost all life and weather on Earth
The Sun.
How many times does the Earth rotate in a single year?
Roughly 365.25 times. Because of that extra quarter-day, we add an extra day to our calendar every four years, which is called a Leap Year