WorksheetsPreventing an impact
Total questions: 16
Worksheet time: 12mins
Biodiversity, aka biological diversity, usually refers to
the same species in a specific location
the number of different species in a given area
the number of animal species in a given area
the number of plant species in a given area
A fossil is ____________.
evidence of past life
part of the fossil record
found in rock layers
all of the above
The order of rock ________ help paleontologists tell how old a fossil is relative to another.
strata or layers
molds or casts
types
colors
Which of the following can be learned by using the fossil record?
All the kinds of animals that used to exist
When the first life evolve
When organisms became extinct
When the Earth formed
True or False? Many scientists think that an asteroid caused the dinosaurs to go extinct.
True
False
What are meteors called when they hit the earth?
Shooting stars
Asteroids
Meteorites
Space Rocks
What is Iridium?
A common metal in the Earth
A metal common in asteroids
A rare metal in the Moon
A particular type of fossil
Where did the Iridium in the rock layer from 65 million years ago come from?
The explosion of a Supernova
An asteroid that crashed into the Earth
The Sun
The vulcanism that occurred during Carboniferous
How long ago did the dinosaurs become extinct?
65 MYA
4.5 BYA
2 MYA
A long time ago
Based on the graph, we could conclude:
The larger the meteorite, the ___________ the crater
larger
smaller
more round
messier
What is force?
A push or pull.
A fast moving object.
A large amount of energy.
The greater the mass of the object, the greater it is will resist a change in its motion.
True
False
What type of force causes a meteorite to impact the Earth?
Normal Force
Weak Force
Balanced Force
Unbalanced Force
If you push an asteroid with the same amount of force as it already has what will happen?
It will keep moving
It will stop moving
It will move backwards
It will fall down.
