General Science

Conductor or insulator?  Metal wire

• Conductor
• Insulator

A food web is a more realistic model of the flow of energy through an ecosystem than a food chain because - 

• most organisms depend on more than one species for food
• each organism in a food chain represents multiple feedings
• most organisms depend on just one species for food
• each organism in a food web represents a single feeding

Why are coal, oil, and natural gas considered nonrenewable resources?

• There is a limited supply, and they can be replaced in a short period of time.
• There is not a limited supply, and they cannot be replenished in a short period of time.
• There is a limited supply, and they cannot be replenished in a short period of time.
• There is not a limited supply, and they can be replaced in a short period of time.

What has the greatest potential energy?

• a rock on the ground
• a rock twenty feet off the ground 
• a rock falling
• a rock being tossed

Liquids have - 

• no definite shape or volume
• a fixed or definite shape but no definite volume
• a fixed/definite shape and volume
• a definite/fixed volume but no definite shape

The beads on this glass are caused by - 

• evaporation
• condensation
• precipitation
• sweaty hands

Carbohydrates are made up of which monomers (smallest units)?

• amino acids

• nucleotides

• simple sugars (glucose)

• fatty acids

What is the 6th planet from the sun?

• Jupiter

• Venus

• Saturn

• Neptune

How many Megabytes in a Gigabyte?

• 1000

• 32

• 1024

true or false? plasma is a state of matter

• never
• false
• true
• sometimes