Vocab
The remains or trace of a plant or animal
Fossil
An event that results in the dying off of many species
Mass extinction
The youngest fossil.
Cow Skull
Who created the laws of motion?
Isaac Newton
What is an example of Push & Pull force?
Horse pulling a wagon/ carriage.
Tug of War
Forces on an object that are equal in size and opposite in direction
Balanced Forces
A push or pull which causes movement
What is the effect of Volcanic eruption and Meteor impact?
Dust and ash in the air
Give an example of balanced and unbalanced forces.
Balanced - sitting on a chair.
Unbalanced - Tug of War where one team wins, kicking a soccer ball.
Give an example of Gravity and Friction.
Gravity - petals falling to the ground.
Friction - A ball rolling on a rocky surface, no air on an air hockey table.
A force attraction between two objects, that are not touching
Gravity
A fossil of a type of organism that lived in many places
Index Fossil
What is the result of dust and ash in the air?
Lack of sunlight causes plants to die.
What are 3 types of fossil fuels?
coal, oil, natural gas
The first law of motion? (be able to illustrate this)
No acceleration can happen without an unbalanced force.
A force that opposes motion and acts between two objects.
Friction
The tendency of objects to resist movement
Inertia
Too much rain causes flooding, what is the result?
Plants die so animals die.
Describe how sediments are formed.
Organisms die, sediments bury them, soft part decay while hard parts are preserved.
The second law of motion? (be able to illustrate this)
Acceleration depends on mass & the amount of force applied.
A model of an organism, formed when sediment fills the mold.
Cast
An impression of an organism, formed when sediments harden around the organism
Mold
Which cause and effect result in plants dying so animals die?
Cause = No rain
Effects = Drought
Name the 5 Types of forces.
Balanced, unbalanced, Friction, Gravity, Push & Pull.
The third law of motion? (be able to illustrate this)
Forces act in pairs