All Hands-On Science: Make a DNA Model!

As part of our genetics studies, we had a parent volunteer visit our classroom and help us make DNA models. Our helpful mom briefly explained how the different combinations of all traits come from the DNA strands.

She supplied students with chenille sticks: full-length sticks and some cut into thirds. 

We folded two of the short sticks together to make the "rungs" of the DNA ladder. then 

We attached the rungs to the full-length sticks, twisting to secure. Finally, we gave the entire DNA ladder a gentle twist. 

It was a great hands-on model of a concept that can be nebulous for kids.

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