Another idea I found this past spring for us to try on our Science days! Thank you, Ms. Baker! This Yummy Gummy experiment was originally for middle schoolers, but my youngest loves his gummy bears and when looking for science activities to do this summer I narrowed in on my boys' likes and went from there.
Ms. Baker has a great print out for this experiment which walks you right through it from purpose to hypothesis to procedures and conclusions. The worksheet is great because you can use part of it for younger kiddos or the whole thing for older kiddos!
OK, so here is how my guys and I did the experiment. Look at the Yummy Gummy experiment for a more detailed explanation. (Remember, my boys are ages 3 1/2 and 5 1/2 and this is how I adjusted the experiment for their age group, but using Ms. Baker's guide this could be appropriate for much older kiddos.)
1/4 cup salt-saturated water
1/4 cup water
1/4 cup lemonade
First we took each of the 4 gummy bears and measured them (we used different colors, it helped us keep everything straight). This is where Ms. Baker's sheets really came in handy, because you'll be comparing the size of the bears at the end of the experiment.
4 gummy bears went into 4 cups. Using sticky notes Cutie Pie helped me label each cup - water, salt water, lemonade, control group (no water).
As I filled each cup with the corresponding fluid I asked for each boy to hypothesize what they thought would happen to the gummy bear (or for my 3 1/2 year old, what it would look like in the morning) then we let them set overnight. Out of curiosity they wanted to dip their finger and taste each liquid, so I let them. Then we observed what the gummy bears looked like under 'water'. They were interested to see bubbles forming on one of the bears.
(If your boys aren't patient waiters, this might be a good time to make homemade lemonade with them so they can feel like they actually did something constructive! I suppose you can always make the lemonade first, too!)
The next morning we observed the gummies without moving the cups. Were they larger? Smaller? The same colors? We then used a spoon and gently took them out and measured them. This was tricky!
I'd love to hear your results if you do this experiment!