This last Saturday was our homeschool group's science fair. Andrew decided to make a lava lamp. He actually made it at the beginning of January, but didn't have his presentation put together until Saturday right before the fair.
Jon sat down with Andrew in the morning and helped him to understand why his homemade lava lamp works: the oil not mixing with the water. So, Andrew brought our kitchen scale and measured water into one water bottle, and the same amount of oil into another water bottle. He put them on the scale to show that the same measurement of each liquid had a different weight or density. Andrew's was the first presentation, and he did such a fantastic job! You never would have thought that he was nervous.
Eliza's and Kate's project had to do with what we've been talking about for science. We've been studying plants this year, and they prepared a presentation about the parts of plants: the roots, stem, leaves, and flowers.
Their poster showed the different parts of the flower, different kinds of roots (with visible tulip bulbs to show their roots), and the two different kinds of tubes contained in stems which transport the nutrients the plant needs. Their project was more about the xylem and phloem tubes in the stem. They put daisies and celery in different colored water to show how the xylem tubes carry water up to the flowers and leaves of the plant.
In all, it was an interesting science fair. Some children just did experiments for everyone, and others did their experiment ahead of time and then explained what they learned. It was a lot of fun and I'm so grateful to be a part of our homeschool group.
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