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What are fossils?
Remains of living things or traces of living things from long ago
Position of an object is the exact place where an object is. True or False?
True
North South East and West are examples of what?
What happens to objects with opposite charges?
They attract
What is relative position?
The position of an object compared to something else.
What happens to objects with the same charge.
They repel
What is a trace?
Footprint or burrow
How do we measure speed?
Km
What are balanced forces?
When two or more forces acting on an object are equal in all directions.
The study of past life on earth through fossils is called what?
paleontology
What are combined forces?
Forces that act on an object the same time. Ex Riding a bike
What are the 3 non contact forces?
Gravity, Magnetism, Electricity
What does climate change cause?
extinction
What are the 3 contact forces?
Friction, Tension, spring
What are unbalanced forces?
When two or more unequal forces act on an object
What is the meaning of extinct?
a) alive
b) no longer living
Pulling up on a zipper means you ______ force.
Exert
What is evidence?
Information that supports something is true
Give an example of something that moves in a pattern.
Clock
Push or pull is an example of what?
Force