R and R
Earth does this once per day, around its Axis.
Rotate, Rotation, or Spin
A round geometric object, or a 3 dimensional circle.
Sphere
What causes people on Earth to experience Day and Night?
The Earth's rotation causes us to experience day and night
Why does the Sun appear larger and brighter than any other star in the sky?
Because it is CLOSER than any other star.
What anchors plants to the ground, and absorbs nutrients and water from the soil?
Roots
Earth does this once per year, around the Sun.
Revolution or Orbit
The real (or imaginary) line, around which something spins.
Axis
What causes Earth's ocean tides to rise and fall?
The moon's gravity causes ocean tides on Earth.
Name Two Ways in which the Sun has an effect on Earth.
-Gives us light
-Gives us heat
-Gives us energy
-Its gravity keeps the Earth in orbit
What part of a plant helps keep the plant upright, so its leaves can reach the Sun?
the Stem
It take earth this long to complete one rotation.
24 hours, or one day
The act of spinning, as if on an axis.
Rotation
Which way is our hemisphere tilted compared to the Sun, to cause Summer?
Our hemisphere is tilted TOWARDS the Sun during our summer.
Which 2 planets are closest to Earth?
Venus and Mars
What part of a plant absorbs sunlight to give the plant energy?
the Leaves
It takes Earth this long to travel once around the Sun.
One year, or 365 days.
The movement of an orbiting celestial object (star or planet) around a center, or another object.
Revolution (or orbit)
Which way is our hemisphere tilted compared to the Sun, to cause Winter?
Our hemisphere is tilted AWAY from the Sun during our Winter.
About how old is planet Earth?
4.5 Billion Years old
What is the name for the small holes on the bottom of a leaf, that takes in carbon dioxide, and gives out oxygen?
Stomata
Which takes longer, Earth's rotation or Earth's Revolution?
REVOLUTION !!
An easily recognized group of stars that appear to be located close together, and that form a picture if lines connecting them are imagined.
Constellation
Do we see the same stars every night, or do we see different stars during different seasons of the year?
We see different stars during different seasons of the year
How did the Moon come to form?
A big collision with Earth and another planet, and the debris sent to space formed our moon.
What is the name of the process by which a plant turns sunlight, carbon dioxide, water, and nutrients into energy for the plant?
Photosynthesis