_ motion looks like the letter Z many times.

(a)  

To (a)   means to move back and forth.

(a)   tells how fast you are going.

A high speed train moves very (a)   . A snail moves slowly.

Offspring are young living things that come from (a)   .

Mammals are animals that feed (a)   to their young.

Birds have wings and feathers, lay eggs with hard (a)   , keep their eggs warm by sitting on them.

A reptile is an animal that has dry scaly skin, lays (a)   and breathes air.

Snakes, turtles, lizards and crocodiles are (a)  

Groundwater is water (a)   Earths surface.

An (a)   is an underground layer of rock that hold water.

Groundwater can be reached by ________ ________

(a)  

A (a)   is groundwater that flows naturally to Earths surface.

Condensation is the change from a ______ to a _______

(a)  

Precipitation is liquid or solid water that falls from (a)  

The air temperature is how hot or (a)   the air is.

A (a)   is a tool used to measure temperature

Temperature is measured in (a)   .

Moving (a)   is wind.

Rocks are natural resources used to _______ walls and _______

(a)  

_______ is a natural resource used to make pots and _______

(a)  

______ is a natural resource used to make ________

(a)  

Renewable resources can be (a)  

To replace trees we cut down we need to (a)   new trees

Renewable resources can become limited due to _________ or ________

(a)  

(a)   resources cannot be replaced

(a)   are rocks that contain useful or valuable substances.

Reduce, reuse, recycle are three ways to (a)   natural resources

To use less of a resource means to (a)