| Phases of Matter | Chemical Reactions | Science Rules! | Cool and Colourful Crystals |
|---|---|---|---|
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Solids, liquids and gases
What are the 3 phases of matter that we have been learning about?
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Carbon Dioxide
Mixing baking soda and vinegar creates what gas?
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As we discovered in class, sugar is an acid
Is sugar an acid or base?
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Borax is a base
Is borax an acid or a base?
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True
True or False:
Gases can be colourless and odourless |
A chemical change creates a new product and is irreversible.
Define a 'Chemical Change'
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The Scientific Method
When we conduct science experiments, we always start by working on what sheet?
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The water was too hot!! Whoops.
As we have learned, science can be unpredictable! Why did our glass jar break when making a crystal?
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Water
Which liquid is heavier (more dense): water or oil?
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A physical change does not create a new product and is reversible.
Define a 'Physical Change'
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FALSE!
You cannot un-cook a steak.
True or False:
Cooking is steak is a physical change. |
1) Borax
2) Hot water 3) Pipe cleaners 4) Glass jars 5) Food colouring 6) String
Name 4 of the materials we used when making our crystals.
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Soap
As we have learned, water and oil do not mix. What liquid allows water and oil to mix together?
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Elephants Toothpaste
We watched a science experiment on youtube where two people created a massive science experiment in a pool. What is that science experiment called?
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Carbon Dioxide
What gas was created when we added Alka-Seltzer to our water and oil mixture during the lava lamp experiment?
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The borax did not dissolve in the cooler water and the crystal did not form.
What happened when we tried to make a crystal with room temperature water?
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Ice cream is a solid (ice crystals) and liquid (cream) and a gas (air bubbles)
Is ice cream a solid, liquid or gas?
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Gastric Acid/ Stomach Acid
Digesting food is a chemical reaction. What acid allows our bodies to digest food and absorb nutrients?
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A prediction/ guess on what we think might happen during an experiment.
Define a hypothesis
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Once the water cools, the borax begins to reform and sticks to the fluff on pipe cleaners.
Why do we need pipe cleaners to make crystals?
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