03. Energy in Food

Outcomes:

- Carry out a fair investigation

- draw a conclusion

How much energy is stored in different kinds of food?

Our bodies get the energy we need from the energy stored in food. Different kinds of food store different amounts of energy.

Apparatus:

• different types of food

• water

• measuring cylinder

• pin

• boiling tube

• cork

• clamp stand

• Bunsen burner

• thermometer

Safety:

Wear eye protection. Do not eat any of the foods

Method:

Draw and label this diagram using the words in bold

boiling tube cork food pin thermometer water

Fill in the missing words using words from the box below.

A I will heat some water using the energy from a _______________________.

B I will make it a fair test by using the ________________ amount of water each time and holding the

burning food the same __________________ from the boiling tube.

C I will measure the volume of the water using a ____________ ___________ and pour it into a boiling tube.

D I will measure the temperature of the water using a ____________________.

E When the food has finished burning I will measure the temperature again.

F I will _________________ the experiment with the other food.

WORDS

distance measuring cylinder piece of food repeat same thermometer

Results:

1 Record your results in a table like this one.

Considering your results/conclusions:

2 When the food burned the energy stored in it was ____________________ to the water and made it hotter.

3 The food which gave the highest temperature was the _____________________. This is the food which stores the most energy.

Homework:

Complete the Transferring energy worksheet.

Next lesson: 05. Simple circuits