Food and Energy

Food and Energy
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Slide 1: Slide
ScienceLower Secondary (Key Stage 3)

This lesson contains 48 slides, with interactive quizzes, text slides and 1 video.

time-iconLesson duration is: 60 min

Items in this lesson

Food and Energy

Slide 1 - Slide

What organ system contains the stomach and the intestines
A
Circulatory system
B
Urinary System
C
Digestive system
D
Central nervous system

Slide 2 - Quiz

What pH is stomach acid?
A
pH 1-2
B
pH 3-4
C
pH 5-6
D
pH 7

Slide 3 - Quiz

What would you see when a piece of metal is added to an acid.
A
Rainbow
B
Fizzing and moving around
C
Lilac flame
D
acid disappears

Slide 4 - Quiz

What is the resultant force on this object ?
A
7N left
B
3N left
C
7N right
D
3N right

Slide 5 - Quiz

What is one difference between a series circuit and a parallel circuit ?

Slide 6 - Open question

Slide 7 - Slide

In all the circuits we have studied so far, what provided the energy to make the bulb light up?

Slide 8 - Open question

Slide 9 - Slide

Slide 10 - Slide

Slide 11 - Slide

How many joules is 3000 kJ?
A
3 J
B
30 000 J
C
3 000 000 J
D
300 000 J

Slide 12 - Quiz

What type of energy is in food, coal, and batteries?
A
Kinetic Energy
B
Thermal Energy
C
Gravitational Energy
D
Chemical Energy

Slide 13 - Quiz

What is the unit of energy?
A
Newtons
B
Watts
C
Amps
D
Joules

Slide 14 - Quiz

Slide 15 - Slide

An egg contains 300 kJ of energy.
How many joules is that?

A
300 000 J
B
0.3 J
C
3 000 J
D
30 000 J

Slide 16 - Quiz

An apple contains 400 000 J of energy.
How many kilojoules is that?

A
40 kJ
B
400 kJ
C
4 000 kJ
D
40 000 kJ

Slide 17 - Quiz

What is 2000J in kJ?
A
2 000 000 kJ
B
2 000 kJ
C
2 kJ
D
20 kJ

Slide 18 - Quiz

What is 3kJ in joules?
A
0.003 J
B
300 J
C
30 J
D
3 000 J

Slide 19 - Quiz

What is 500J in kJ?
A
5 kJ
B
0.5 kJ
C
50 kJ
D
5000 kJ

Slide 20 - Quiz

What is 10 000 joules in kilojoules kJ?
A
1 kJ
B
10 kJ
C
100 kJ
D
1000 kJ

Slide 21 - Quiz

What is 0.4kJ in joules
A
4 J
B
4000 J
C
40 J
D
400 J

Slide 22 - Quiz

What is 25 kJ in joules?
A
250 J
B
2500 J
C
25 000 J
D
0.025 J

Slide 23 - Quiz

How many joules of energy is in an entire mars bar?

Slide 24 - Open question

Slide 25 - Slide

Slide 26 - Slide

Slide 27 - Slide

Which of these foods has the most energy per serving?

Slide 28 - Open question

Which of these foods has the most energy per 100g?

Slide 29 - Open question

How much energy would you get if you ate a sausage sandwich with one sausage?

Slide 30 - Open question

Slide 31 - Slide

Slide 32 - Slide

Why might you need more energy than me?

Slide 33 - Open question

Match the activity with the amount of energy needed
Working
Relaxing
Playing
Sleeping
300kJ
3600kJ
360kJ
600kJ

Slide 34 - Drag question

Slide 35 - Slide

Match the activity with their energy for each minute
6 kJ
7 kJ
13 kJ
15 kJ
25
60
73
running
swimming
cycling
walking
standing
sitting
washing

Slide 36 - Drag question

Why do we need energy while we are sleeping?

Slide 37 - Open question

Slide 38 - Slide

Which of these people will gain weight?
A
A
B
B
C
C
D
D

Slide 39 - Quiz

Slide 40 - Slide

Slide 41 - Video

What breaks down food in a digestion tank?

Slide 42 - Open question

What gas is produced in the process?

Slide 43 - Open question

Slide 44 - Slide

Slide 45 - Slide

Slide 46 - Slide

Slide 47 - Slide

Slide 48 - Slide