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28 Cards in this Set
- Front
- Back
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What colour is number 7 on the pH scale |
Green |
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What type of change happens when you mix vinegar and water? |
Permanent |
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When dipping blue litmus paper into an acid, what happens? |
It turns red |
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Explain a fair test? |
You change just one variable to test fairly which variable is effecting the results |
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Explain the process of neutralisation |
Neutralisation is a reaction that occurs to result in a solution that is neutral |
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What type of change happens when you mix oil and water? |
Temporary |
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Name the 4 worlds of science |
Physical Material Living Earth and beyond |
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What colour is number 3 on the pH scale? |
Light red |
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What colour is number 10 on the pH scale? |
Blue |
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What number is lemon juice on the pH scale? |
2 |
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What number is vinegar on the pH scale? |
2 |
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What number is baking soda on the pH scale? |
9 |
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A liquid that tests between 0-3 is a...? |
Strong acid |
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A liquid that tests between 4-6 is a...? |
Weak acid |
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A liquid that tests between 8-10 is a...? |
Weak base |
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A liquid that tests between 10-14 is a...? |
Strong base |
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A liquid that is sour and corrosive is a... |
Acid |
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A liquid that is bitter and feels slippery is a...? |
Base |
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Another name for a base is |
An alkali |
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What colour is the number 5 on the pH scale? |
Orange |
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What happens when you dip blue litmus paper in a base? |
It stays blue |
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When we mixed berocca and water together in the canisters, what happened and why? |
The cap popped off because the reaction between the berocca and water created a gas which made pressure build up inside the canister. |
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What colour is the number 6 on the pH scale? |
Yellow |
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What is the number range on the pH scale? |
0 - 14 |
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Is baking soda an acid or a base? |
Base |
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Is toothpaste an acid or a base? |
base |
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Can you come up with an example of a permanent change |
Any change where a reaction has occurred and the effects cannot be reversed |
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Can you come up with an example of a physical change? |
Any change of state, where the results of this change are reversible |
