Waves
Magnets
Fossils
Tectonic Plates
Minerals and Rocks
100
What is a wave?
A wave is a disturbance involving the transfer of energy from place to place.
100
True or false
Can magnets attract all metals?
False
100
What are fossils?
A fossil is any preserved remains, impression, or trace of any once-living thing.
100
What are the types of plate boundaries?
Divergent,Convergent,and Transform boundaries.
100
What is the densest mineral?
Diamond
200
What is the trough?
The lowest part of a wave.
200
What is the space around a magnet where its force acts is called?
A magnetic field
200
Does everything fossilize?
No, very few organisms are lucky enough to be preserved.
200
Who thought of continental drift?
German scientist, Alfred Wegener
200
What is a mineral?
A mineral is a naturally occurring solid
300
What is amplitude?
The distance between the crest or the trough and the middle of the wave.
300
What is a generator?
A generator uses motion in a magnetic field to produce currents.
300
What has to happen to a bone to be fossilized?
It has to be buried first.
300
What is sea-floor spreading?
the formation of new areas of oceanic crust, which happens when magma gushes up at mid-ocean ridges.
300
What is a sediment?
Sediment is small solid pieces of mineral.
400
What is the equation for speed?
Speed=Wavelength x Frequency
400
How can you tell if something is magnetic?
You can tell if an object is magnetic or not by holding another magnet close to it.
400
What is the oldest fossil found?
Stromatolite fossils
400
How are mid ocean ridges formed ?
Mid-ocean ridges form long chains of mountains that rise up from the ocean floor.
400
How are Metamorphic rocks formed?
They can form out of Igneous, Sedimentary,or other Metamorphic rock.
500
What is the difference between amplitude and frequency?
Amplitude is the size of the vibration and determines how loud the sound is. A frequency means one wave cycle per second.
500
How many types of magnets are there?
7 different types.
500
What can be found about a particular fossil when it was alive?
how long life has existed on Earth, what the eat, and what their climate was like.
500
Why are fossils examples of Pangea possibly happened?
The scattering of ancient fossils of the same animal on two or more totally different continents.
500
What is the equation for density?
P=M/V
p= density M=mass V=volume