Several days ago, I had done a science test in school with my friends.

  Our task was to get salt out of water. In the water, there was other things such as lake sand, iron and bead in it.

  My idea was to use a magnet to get iron out and use tweezers to get bead out. But my friend said tweezers couldn't catch bead properly and we could use a spoon to catch the bead. The last step was to get sand out of water. I thought out many ideas, but none of them could be used. Suddenly, I had a very good idea which was to use a filter to get the sand out. Then we tried it. It worked. We were the first people to finish the test.

  In the end, we just needed to put the saltwater on the heat and wait for the water to evaporate.

  My friends all called me a clever boy. I was very happy.(*^__^*)

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