Food

Question 0

Why do we need food ?

Answer 0

Food is needed to give us energy , for growth and repair and for protection against disease

Question 1

How do animals get food ?

Answer 1

They get their food by eating plants or by eating other animals that have eaten plants

Question 2

What percentage of the human body consists of water

Answer 2

70%

Question 3

Why do we need water ?

Answer 3

Water is used to dissolve substances such as digested food molecules and to transport them around the body

Question 4

How do we loose water ?

Answer 4

Through respiration , sweating and producing urine

Question 5

What is a balanced diet ?

Answer 5

A balanced diet is one that contains the right amounts of all the food types needed to stay healthy

Question 6

What is the function of the food pyramid ?

Answer 6

It shows us roughly the amount of each common food types per day for the average child or adult for a healthy balanced diet

Question 7

What is the test for starch?

Answer 7

By adding iodine solution - turns blue black

Question 8

What is the test for glucose ?

Answer 8

By adding Benedictus solution and heating - it turns a brick red colour

Question 9

What is the test for protein?

Answer 9

By adding copper sulfate to protein with sodium hydroxide added. - it turns violet

Question 10

What is the test for fat?

Answer 10

Rubbing fat on brown paper - a translucent spot appears