Science & Nature Activity Kit 2025
The Bell Museum is thrilled to provide fun-filled, take-home kits for kids and families to engage in science and nature.
Each kit contains step-by-step instructions and materials for four different activities.
Groovy Gills
Additional Information
Q & A about gills with Dr. Kassie Ford!
Q: Why are the gills right next to the mouth?
A: The gills are next to the mouth so the water doesn’t have to travel very far to get to its destination.
Q: What does extract mean?
A: Extract means to take out of or remove
Q: Can we (humans) get oxygen from water like fishes do?
A: We cannot get oxygen from the water like fishes do. We can only breathe air and get oxygen from gasses. We extract oxygen from the air using our lungs.
Q: Why do animals need oxygen?
A: Animals need oxygen for cells to work correctly. Without oxygen, our muscles wouldn’t move and our brains wouldn’t work
Q: Do you think the gills ever get clogged? Why or why not?
A: Gills don’t usually clog because the fish can push more or less water through the gills. This can prevent clogging, kind of like a plunger!
Q: What difference would it make if the gill filaments were thicker or thinner?
A: Thicker gill filaments would have a smaller surface area for oxygen extraction and wouldn’t be very efficient. Thinner gill filaments have a larger surface area and allow for more oxygen extraction
Q: What difference would it make if the gill rakers were thicker or thinner?
A: Thicker gill rakers wouldn’t be as good at sifting out food items so usually fishes that eat large things have thicker gill rakers (think of a pasta strainer with really large holes). Thinner gill rakers are better at sifting out food items and are usually found in fishes that eat smaller things (a pasta strainer with smaller holes).
More about Dr. Kassandra “Kassie” Ford!
We want to hear from you!
Submit pictures and share your feedback on the activities by filling out this brief survey.
Thank you to our Science & Nature Activity kit sponsors
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