Heat, Light and Shadow

Which of the following is not a source of heat?

• stove

• sun

• calendar

• campfire

Which of the following are natural sources of light? (chose more than 1)

• 
• 
• 
• 

Which of the following is a transfer of heat through solids?

• Convection

• Radiation

• Conduction

• Condensation

What do we need to make a shadow?

• Light Source

• Object

• Surface

• Glass

Rubbing two objects together will produce heat. What kind of heat transfer is that?

• Radiation

• Conduction

• Convection

Water vapour going up from boiling water is the heat transfer by

• Conduction

• Convection

• Radiation

Using the sun as a source of light, what time of the day is your shadow the longest?

• in the morning

• at noon

• in the afternoon

• at night

What type of object will block off all light and will create the darkest shadow?

• opaque object

• translucent object

• transparent object

• plastic

What can you do to warm your body?

• We eat ice cream

• We drink hot soup

• Playing ice skating

Light travels in ______ line

• Curved

• Straight

• Zigzag

• Broken