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DIYs » Stem Activities » Amazing Anatomy Biology » Age 6 - 8

A time-lapse video demonstrates a color mixing experiment using paper towels and colored water. Four small, clear plastic bottle caps containing red, yellow, orange, and green water are arranged in a row on a light wooden surface. Small wooden sticks are inserted into modeling clay bases and placed behind each cap. A white paper towel is draped over the sticks, with the bottom edge submerged in the colored water. As time passes, the colored water wicks up the paper towel via capillary action, creating vertical streaks of color that gradually blend together where they meet. The video focuses on the process of the colors traveling up the paper towel and mixing.

Kitchen Roll Flowers

Plants use capillary action to obtain nutrients and water from soil. Through this science experiment, we can make this process visible to children!

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Two hands manipulate a homemade device constructed from a clear plastic bottle, two balloons (one pink, one light blue), and a blue straw. The pink balloon is inside the bottle and partially inflated. The light blue balloon is stretched over the bottom opening of the bottle. The blue straw is inserted in the bottle's top opening and sealed with light blue putty or clay. One hand holds the bottle while the other gently pulls on the light blue balloon at the bottom. The background is plain white. This appears to be a science experiment demonstrating lung function or the principles of air pressure and volume.

DIY Respiratory System

Breathing is fundamental to life, and understanding the science behind it enhances our appreciation and respect for our bodies. Create a simple DIY lung model and explore the fascinating process of breathing with your child!

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