We discuss our hypothesis, method, results and make conclusions. We also have been thinking about modifications that we could make if we complete the investigation again.
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| Making crystals with Epsom Salts |
We have looked at how puddles evaporate, what happens (reaction) when an acid is put with a non-acid and how crystals grow.
The crystals were great to watch because the Epsom Salt crystals starting growing almost straight away. We learned that every type of chemical that makes a crystal grows a different way. The epsom salt crystals are long.
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| What happens with baking powder, baking soda, water and vinegar |
We were pretty excited about putting an acid (baking powder) with an acid (vinegar) and seeing the reaction - our hypothesis was that it would make a BIG FIZZ... and we were right!
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| Thinking about puddles & evaporation |
When we read about evaporation, we learned that the sun plays a big part on how fast the puddles evaporate. However, we also found that we did not complete a FAIR TEST. We had a big discussion about what we could do better next time to make it a fair test. Now we just have to wait for the sun to shine again!
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