How Science Work

Question 1

What does Carbohydrates do?

Answer 1

The main source of energy

Question 2

Why do people eat Lipids?

Answer 2

Fats. For energy and instulisation

Question 3

Why do people eat proteins?

Answer 3

For growth and repair

Question 4

What does water do?

Answer 4

It hydrates the body

Question 5

Why do we eat vitamins and minerals

Answer 5

To keep us healthy

Question 6

What is the formula to work out the amount of energy in food samples?

Answer 6

Energy=volume of water x 4.2 x temperature difference (j=cm3 x celcius x celcius

Question 7

What solution would you add to Protein and what colour would it become?

Answer 7

Copper Sulphate, Sodium Hydroxide + Purple

Question 8

What would you add to Starch and what colour would it become?

Answer 8

Iodine + blue/black

Question 9

What solution would you add to sugar and what colour would it become?

Answer 9

Benedicts Solution + orange / red

Question 10

What solution would you add to lipids (fats) and what colour would it become?

Answer 10

Water and Alchol + cloudy

Question 11

What does fibre do?

Answer 11

Provides bulk to food