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18 Cards in this Set
- Front
- Back
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In the fizzy drinks test why did the drink get light as it got flatter |
Because the gas contributes to the mass and so when the can was opened, the gas escaped thus making the can lighter |
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What is the equation for carbon dioxide? |
Metal carbonate + acid = salt + water + carbon dioxide |
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Why do we need minerals |
To build strong bones teeth blood skin hair and nerve function |
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What is the nucleus? And is it in a plant cell or animal cell? |
It tells the cells what to do and it is found in both |
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What is what is the test for diffusion in liquids |
Add a teabag to cold water and another to warm wait for a given time and see which one had turned browner |
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Where are sperm cells made? |
In the testies |
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What is the test for startch |
Add 3 drops of idone to a test tube that contains your food and 3cm of wanted a colour change from orange to blue or black means there is startch |
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What colours are acalides |
Dark greens (weak) Blues (average) Purple (strong) |
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What happens when an acid and an alkaline react? |
They neutralise each other because they make slay and water and water is neutral. |
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What is fibre needed for |
To reduce the amount of cholesterol in your blood and improves your digestive system and helps prevent some desies |
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What is the test for fat |
Rub your food on a peice of paper hold it up to the light if see through then there's is fat |
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How does a gas solid and liquid's particles behave? |
Solid-stick together small vibration Liquid-move more freely yet still connected Gas- completely free, move the quickest |
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What is menstuiation |
Menstuiation is another name for your period which is when blood leaves you boy through your vagina |
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What desis can cause damage to a fetus? |
Rubella |
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What is the valcuole and is it in an animal or plant cell? |
A storage space filled with sap and it is in the plant cell |
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What is combustion? |
The burning of fuel in oxygen it is a chemical reaction as it makes new products often in water and carbon dioxide |
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How long does you a menstrual last for |
28 days on average |
