Beaks or other structures to help gather food, fur to keep warm in a harsh environment, camouflage to escape predators are all examples of this.
What is an adapatation
100
A material that allows electric current to flow through it in an electric circuit.
What is a conductor
100
High temperatures inside the middle of the earth create melted rock called this.
What is magma
200
The force caused by two objects rubbing together
What is friction
200
When one kind of matter changes into a different kind of matter, this kind of change takes place.
What is a chemical change
200
Water evaporating from the surface of the earth, rising into the air & cooling, collecting in clouds, & falling again as precipitation is this.
What is the water cycle.
200
A material that does not allow electric current to flow through it in an electrical circuit.
What is an insulator
200
The type of rock that forms when silt (very fine dirt) accumulates & settles in a river bed and then is compressed into layers over time.
What is sedimentary rock
300
A tool that has few or no moving parts
What is a simple machine
300
Baking, rust, & burning wood are examples of this type of change in matter.
What is a chemical change
300
Climate, landforms, vegetation, animals, location are 5 characteristics that make up this.
What is a biome
300
Connecting wires, batteries, & bulbs in a certain sequence is making this.
What is a complete circuit
300
The type of rocks that are formed by cooling & solidification of molten magma or lava.
What is igneous rock
400
A simple machine that lifts/moves things (like a see-saw or shovel)
What is a lever
400
Water freezing, ice melting, molding clay, & ripping paper are examples of this type of change in matter.
What is physical change
400
Over fishing, over farming, over building in natural habitats are examples of this
What is how humans impact the environment
400
To transform an electricity into light, electric current flows from an energy source through a circuit then back to the source. This is an example of a complete or ______ circuit.
What is a closed circuit
400
The type of rock that is formed by changing other types of rock through heat & pressure.
What is metamorphic rock
500
A simple machine that moves objects to a higher or lower place (like a handicapped ramp)
What is an inclined plane
500
Water that collects as droplets on a cold surface when warm air is in contact with it is called this.
What is condensation
500
Water moving across earth in streams & rivers & pushing soil & pieces of rock from some areas to other areas creating new land forms or changing the course of a stream or river is this.
What is erosion
500
A break in the loop in an electric circuit prevents the flow of electric current This is an example of an incomplete or ______ circuit.
What is an open circuit
500
Rocks that are changed or carved in shape by wind or water.