This week in our 'Be A Detective Project,' our Year 5 and 6 children looked at secret messages. We decided to try and create our own secret messages using resources we could find at home. When we researched it, we found four different ways to do this so we decided to organise a science investigation to work out which way was best. Our investigation was:
Which create/reveal the clearest messages?
- lemon juice and an iron
- baking soda, water, grape juice
- salt, hot water, pencil
- full fat milk
We split off into groups to test this out. We carefully read the instructions, worked out what we would need then off we went.
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We wrote up what we did and then compared our results. We found out that messages are revealed through a chemical reaction. Which one do you think worked the best? Let us know in the comments and we'll reveal the result at the end of the week.
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Kia ora Rimu Class,
ReplyDeleteWe really loved your blog post and the very creative introduction. We wanted to know what the secret was. We think it's cool that you used several different techniques to reveal the messages. We wonder if you could label the pictures so we know which experiment they were trying.
How long did it take for them to work?
Most of the class thought that the grape juice one would work the best and the second closest was the heat. Is this right?
Nga mahi,
Rimu Class with Mrs Spragg
hi my name is Calais i attend to pt England school i am a year 8 student. i like your creative shhh its a secret
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