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Archive for the ‘Science Category’ Category

PLANT DETECTIVES

Today we did an experiment and I think it’s really cool. The aim of our experiment was to see if seeds need water, light and warmth to start to grow.

To see if seeds germinate without water
We needed cress seeds,cotton wool and ziplock bags to do the first experiment. First we put three balls of cotton wool into the ziplock bag. Then we put some cress seeds on to the cotton wool. After that we zipped the ziplock bag and put it into the small room in the back of our classroom. We did not give these seeds any water!

To see if seeds germinate without light
Then we moved onto the second experiment. For this experiment we needed cress seeds, cotton wool, ziplock bags and a dark place. Just like we did with the first experiment, we put three balls of cotton wool into the ziplock bag and some cress seeds onto the cotton wool and then we zipped the ziplock bag. The only difference with the first experiment is we put the ziplock bag into the drawer which is the dark place. Everyday we poured water over these seeds.

To see if seeds germinate without warmth
Then we were ready for the last experiment! We used the same materials as the last two but there is one thing that is different to the last two and it is the fridge! We put three balls of cotton wool into the ziplock bag and placed some cress seeds onto the cotton wool. We zipped the ziplock bag after that. We followed the same steps as the last two but there was a difference.We put this ziplock bag into the fridge and watered it everyday.

Take a look at our pictures to see our seeds germinated. If you think our experiment is finished, then you are wrong!! This experiment is interesting and easy so you can try it in your home. And that’s the end,enjoy! Bye bye

By Youming Pan

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