food

Food

Food Groups

Proteins

VitaminsMinerals

Fats and Oils

Carbohydrates

Carbohydrates

• Starch and Sugars• Also fibre (Called roughage-to make

you gooooooooo!)• Used for energy

Test for Starch

Blue-black colour appears

Solution Containing Starch

Add Iodine solution

Test for Glucose

Orange colour appears

Solution Containing Reducing Sugar

Benedict’s solution

Heat it up

Proteins

• Meat, Eggs, Cheese and Beans.• Used to repair the body and grow

new cells.

Test for Protein

Violet Colour

Solution Containing Protein

Sodium Hydroxide Dilute

Copper (II) Sulphate Solution

Fats and Oils• Converted to energy• Also used for insulation• Brown paper test – Rub it

on

Food

Clear patch on brown paper proves food contains oils

Minerals

• Simple elements needed for specific functions

Calcium for……….Teeth and Bones

Iron for………….Blood Cells

Vitamins

• More complicated chemicals used in the body

• Vitamin C……..Skin (LackScurvy)• Vitamin B1……Nerves (BeriBeri)• Vitamin D……..Bones (Rickets)

Food PyramidA balanced diet includes all the food groups in the proportions of the pyramid

Food Labels

Heat

Proof - Food has energy

Burn food (A peanut in-fact) it heats up waterMust be an energy conversionFOOD HAS ENERGY

Peanut

Summary