(Q)

Resource renewal

(Q)

Is conservation in which a certain species is protected.

Example: growing a threatened plant indooors until it is strong enough to plant out doors or protecting animals like bald eagles until they are no longer endangered.

(N)

Waxing

(N)

Means getting bigger.

(N)

Waning

(N)

Means getting smaller

(N)

High tides, Low tides

(N)

There are 2 __ __ and 2 __ __ every 24 hours.

(J)

Humans

(J)

Can have a major impact on ecosystems.

(I)

Limited Resources

(I)

There a ___ ___ within an environment.

(F)

Wheel and axle

(I)

The ___ and ___ consists of a rod attached to a wheel.

(E)

Simple Machines

(E)

___ ___ are tools that make work easier.

(D)

Mass

(D)

Is a measure of the amount of matter.