NCFE Practice Test #1

As ice cream melts, its molecules ____________.

• Absorb that heat energy and move farther apart.
• Absorb heat energy and move closer together.
• Release heat energy and move farther apart.
• Release heat energy and move closer together.

Which diagram best shows the property of refraction?

• A
• B
• C
• D

Which of the following is most likely to make a rock crack and crumble?

• Dew evaporating on the rock
• Leaves decaying on the rock
• Snow melting in a crack in the rock
• Water freezing in a crack in the rock

The pictures below show four different bells made of the same material. Which of the bells should have the lowest pitch?

• Bell 1
• Bell 2
• Bell 3
• Bell 4

Which of the following events involves a consumer and producer in a food chain?

• A cat eats a mouse.
• A deer eats a leaf.
• A hawk eats a mouse.
• A snake eats a rat.

Which of the following best describes how plants use the energy they receive from sunlight?

• They change water into heat.
• They produce their own food.
• They make minerals for their roots.
• They break down nutrients into roots.

Many bacteria are decomposer organisms. Which of the following statements best describes how these bacteria help make soil more fertile?

• The bacteria break down water into food.
• The bacteria change sunlight into minerals.
• The bacteria combine with sand to form rocks.
• The bacteria break down plant and animal matter.

A statue and a table are both made of the same type of marble. Which of the following properties will most likely be the same for both of these objects?

• Size
• Shape
• Weight
• Hardness

The picture below shows an incomplete electrical circuit. Which of the following objects can be connected to the ends of the two wires to make the circuit complete and light the bulb?

• A battery
• A switch
• Another bulb
• Another wire

The pictures below show the same area before and after an event occurred. Which of the following events most likely caused the change in this area?

• A flood
• A hurricane
• A volcanic eruption
• A strong earthquake