Junior Science
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Why do we need food | Energy, growth and repair of cells and protection against disease
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| What are the five main nutrients (food groups) | carbohydrates, fats, proteins, vitamins and minerals
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| ICarbohydrates can be divided into three separate groups, what are they | Sugar, Starch and Fibre
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| What is the function of carbohydrates | provides energy
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| What is the function of fibre | Prevents constipation
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| Name two sources of sugar | Jam, honey
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| Name two sources of starch | potatoes, pasta
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| Name two sources of fibre | Bran, vegetables
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| What is the function of fats | provides heat and energy
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| What is the function of proteins | Growth and repair of cells
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| Name two sources of fats | Butter, Cheese
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| Name two sources of proteins | Lean meat, Fish
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| What is the function of vitamins | Healthy skin and gums and strong bones
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| Name two common vitamins | Vitamin C And Vitamin D
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| From what foods can you get Vitamin C | Citrus fruits e.g. Oranges
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| From what foods can you get Vitamin D | Milk, cheese
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| What is the function of vitamin C | Healthy skin and gums
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| What is the function of Vitamin D | Strong bones
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| Name two common minerals in the diet | Calcium and Iron
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| Why is calcium important In the diet | Strong healthy bones
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| Why is iron important in the diet | To make red blood cells
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| From what foods do you get calcium | Milk and cheese
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| From what foods do you get Iron | Liver and spinach
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| What percentage of the human body is made of water | 70%
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| Why is water important in the diet | It transports dissolved substances around the body
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| Why do we have to drink water | To replace water lost from the body through sweat or urine
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| What do you call a diet that contains the right amount of all food types needed to stay healthy | Balanced diet
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| What is a food pyramid | A diagram that shows the amount of each food type an average person should have to have a balanced diet
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| To test for fats what are the two main things that are needed | Brown paper and oil
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| If oil is present what happens on the brown paper | A translucent spot appears
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| What does translucent mean | It lets light through
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| To test for starch what is the name of the dye that is added to the starch solution | Iodine
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| What colour is iodine | Yellow
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| What colour does the starch solution turn to if starch is present | Blue/black
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| What is another name for the test for protein | Biuret test
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| When testing for protein what is the name of the reagents that are added to the milk | Sodium hydroxide and Copper sulphate solution
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| If protein is present in the milk what indicates a positive result | A purple colour
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| When testing for glucose what is the name of the reagent that is added to the glucose solution | Benedicts Solution
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| If Glucose is present what colour change occurs after placing in a boiling water bath for 3minutes | A brick red colour
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| When investigating the conversion of chemical energy into heat energy what happens to the thermometer above the burning food sample | Temperature rises
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