Term 1&2

Question 1

What is needed for photosynthesis?

Answer 1

The plants uses energy from the sun, carbon dioxide and water to make food.

Question 2

What gives plant their green color?

Answer 2

Chlorophyll

Question 3

What does the plant do with the food it makes?

Answer 3

It turns it into glucose sugar and than into starch and stores it in its stems, flowers, leaves

Question 4

Give examples of starch stored in:
Fruit
Roots
Leaves
Stem
Seeds

Answer 4

Fruit: banana 
Roots: potato or carrot 
Leaves: spinach or cabbage 
Stem: celery 
Seeds: nuts

Question 5

In what way do living things meeds plants?

Answer 5

Living needs the oxygen that plants hive off to live.

Question 6

How many food groups are there? Name them.

Answer 6

Four
Carbohydrates 
Vitamin and minerals 
Protein 
Fats and oil

Question 7

How do we benefit from eating carbohydrates?

Answer 7

It gives us energy for movement and growth

Question 8

Explain the types of carbohydrates.

Answer 8

Sugar is a form of carbohydrates that releases a lot of energy quickly. If energy not used up it turns into body fat.
Starch is better because it releases energy slower and for longer.

Question 9

Give examples of starch and sugar.

Answer 9

Rice, potatoes and bread are starch.

Fruits are natural sugar and cool drink and jams are processed sugar.

Question 10

Which form of carbohydrates has more nutrients?

Answer 10

Starch has more nutrients and sugar has more energy.

Question 11

Why is protein so important to include in our diet?

Answer 11

It helps build, grow and repair our bodies.

It strengthens our immune system and gives us muscles.

Question 12

If you are feeling sick. What will you eat to help your immune system fight the germs?

Answer 12

A lot of protein

Question 13

In what parts of your body will you find protein?

Answer 13

Bones, hair, skin and nails

Question 14

Why is ted blood cells and protein so important?

Answer 14

The protein helps make red blood cells that carry oxygen from our lungs to the rest of our body.

Question 15

Front what food group do we get the most energy from?

Answer 15

Oils and fats

Question 16

How does oils and fat benefit us?

Answer 16

They form a protective layer in our bodies protecting our organs and keeps animals warm.

Question 17

Are all oils and fats healthy?

Answer 17

No. Healthy fats we get from avocado, sardines, nut and sunflowers.
Unhealthy fat is called saturated fat from meats

Question 18

Where do we get the vitamin and minerals we need ?

Answer 18

We get it from the foods that we eat. Like proteins, carbohydrates and oils.

Question 19

Why is vitamin and minerals so important?

Answer 19

It helps our immune system, gives us strong eyesight, teeth and bones.

Question 20

If a product has a lot of calories, is it good or bad for our bodies? Explain your answer.

Answer 20

A lot of calories mean a lot of energy. So if the energy is not used up it will turn into body fat that is bad for us.

Question 21

What is sodium and what does it to do our bodies?

Answer 21

It’s salt. Too much of salt increases our blood pressure.

Question 22

What does a diet mean?

Answer 22

The different food we eat everyday

Question 23

Why is 6-8 glasses of water good for u?

Answer 23

Gives us energy, keeps and cleans our blood vessels clean and healthy and avoids constipation.

Question 24

How does eating fruit,vegetables and grains help our digestive system?

Answer 24

They have a lot of fibre. Fibre pushes out the waste from our digestive system.

Question 25

Mixing 2 or more things together is called a ……

Answer 25

Mixture

Question 26

Name the 5 ways to separate mixtures.

Answer 26

Separate by hand
Sieving 
Filtering 
Settling 
Decanting

Question 27

Whats the difference between a mixture and a solution?

Answer 27

A mixture is 2 or more things mixed together.

A solution is a mixture but u can’t see the different substances because it dissolved

Question 28

Explain how 2 substances dissolves.

Answer 28

When their particles spread and mix evenly into each other

Question 29

If a mixture is evenly spread we say the mixture is….

Answer 29

Uniform

Question 30

Is you put sugar in a cup of tea. What is the sugar called and what is the tea called and why?

Answer 30

Sugar is the solute and the tea is the solvent. A solute can dissolve into a liquid and the tea is the liquid it dissolved into

Question 31

Give an example of a soluble and of a insoluble.

Answer 31

Soluble: sugar or salt
Insoluble: beans orbrice

Question 32

Five 2 examples of a solution.

Answer 32

Solvent +. Solvent
Liquid. +. Liquid

Solvent. +. Solute
Liquid. +. Solid

Question 33

What is solubility?

Answer 33

How well a substance can dissolve

Question 34

What’s the difference between melting and dissolving

Answer 34

Melting the substance stays the same only the state changes.

Dissolving the type of substance changes

Question 35

How can some solutions be separated?

Answer 35

By evaporating and crystallization and filtering

Question 36

Explain crystallization

Answer 36

When a liquid evaporates from the solution and the solute that is left behind is called crystallization

Question 37

Explain filtering

Answer 37

When a solution is passed through filter paper and the solute doesn’t pass through