PRAXIS Elementary Education: Science Content Knowledge 2

Question 1

Which process describes water changing directly from a solid to a gas without becoming a liquid?

Accepted Answer

Sublimation

Answer

Sublimation is the phase change from solid directly to gas, as seen in dry ice.

Question 2

A student observes that a metal spoon in hot soup becomes warm at the handle. Which heat transfer method is responsible?

Accepted Answer

Conduction

Answer

Conduction transfers heat through direct contact between particles in a solid.

Question 3

In a food web, organisms that break down dead matter and return nutrients to the soil are called what?

Accepted Answer

Decomposers

Answer

Decomposers like fungi and bacteria recycle nutrients from dead organisms.

Question 4

Which of the following is a renewable resource?

Accepted Answer

Wind

Answer

Wind is renewable because it is naturally replenished and not depleted by use.

Question 5

What force keeps the planets in orbit around the Sun?

Accepted Answer

Gravity

Answer

Gravity is the attractive force that keeps planets orbiting the Sun.

PRAXIS Practice Test