Unit 17 L5

There is no ______ without power.

• heat

• light

• sound

• movement

The ______ makes a room cooler or warmer.

• fan

• air conditioner

• heater

• thermostat

Wood, oil, and gas are ______ of energy.

• sources

• types

• forms

• kinds

A furnace is a ______ that makes heat.

• device

• machine

• tool

• appliance

Heat keeps a home ______.

• warm

• cool

• bright

• safe

What is this chapter about?

• blankets

• heat

• food

What makes a room cooler or warmer?

• apartment

• tree

• thermostat

What are wood, oil, and gas?

• sources of energy

• types of foods

• technology

What is a furnace?

• rock

• machine

• car

What is important to know about this chapter?

• Chelsi wakes up too early.

• There wasn't a storm.

• People use heat energy to warm their homes.