Space
how many planets are there in our solar systems?
8
How long is a day on earth?
24 hours
What is a mold-fossil?
what does a wave travel through?
A medium
What is gravity?
the force that attracts a body toward the center of the earth, or toward any other physical body having mass.
How many planets is the earth from the sun?
3
How long does it take for the earth to orbit around the sun?
365
What is an fossil imprint?
A trace or a track
________ require a medium to travel through
mechanical waves
What is friction?
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.
what is the coldest planet?
Neptune
What is the youngest rock layer the one on the top or the one on the bottom
The one on the top
What was dominant during the mesozoic era?
Dinosaurs
what is the frequency measure in?
Hertz
How many laws of motion are there?
3
what planets are gaseous?
The outer planets
Earth is the __________ planet from the sun?
Third
What can fossils help learn about?
They can help us learn about what used to live back then like dinosaurs
What is a wave length
The distance between crests of a wave.
What would take more force to push a semi-truck or a smart car?
The semi-truck
What planets are terrestrial?
The inner planets
What is the axial tilt of the earth?
23.5 degrees
In what type of rock are most fossils found?
Sedimentary
what are the two types of interference between waves?
constructive or destructive
In a tug of war, when one team is pulling with a force of 100 N and the other 80 N, what is the net force?
100 N