3D Printed Science Kits
Ionic Bonding Puzzle Kit
Ionic bonding puzzle to help students practice finding the ratios between atoms based on their charge. Each kit comes with 18 ion tiles (3 of each) and custom tray/lid to organize and store the materials. See the videos below for a demonstration of how the pieces fit together
The color scheme for each style will match the rainbow colors shown photos.
An activity using these kits can be found for free here:
If you have specific color requests, send me a message and we might be able to figure something out :)
Radioactive Dice and Box
Tangential Velocity Launcher
A Tangential Velocity Launcher for demonstrating that an object moves tangent to the curve once it leaves its circular path
A marble or bearing can be spun up with the lever in the down position and then released by opening the lever gate. Provided with the instructions to “score a goal”, students tend to “discover” the idea of tangential velocity on their own :)
Penny Circles
These labeled circles are a physical version of this quadratic modeling activity where students graph the number of pennies (or nickels) that fit flat in a circle with the diameter of the corresponding circle.
I have found that it's best to have a complete set of rings for each group but groups can also share if you don't have enough for that.
Button Battery LED Holder
A simple little set up to hold a battery and LEDs to make light up necklaces or other crafts involving button batteries.
The 3-Volt 2032 button battery securely snaps into place and built in grooves guide the LED leads into place and hold them snug against the battery.
When assembling, remember that LEDs only work one direction and the long wire must be connected to the positive side of the battery. The LEDs are spaced out so that the battery holder can be taped to the back of a piece of card stock and designed as eyes for a ghost or other character.
To remove the battery, just use the edge of a table to push on the battery through the semicircular cutout on the holder.
Cup Balance
A simple design that uses standard 3.5 ounce plastic cups and a toothpick to measure relative masses.
The toothpick must be round and is a fairly snug fit in the hole on the top but can be easily replaced if it breaks. The supports can be anything that provides clearance for the cups without interfering. As shown in the photo, I just use upside-down large plastic cups
This can used as part of a lab where students use beans as units to quantify a variety of properties including mass.
These sets for purchase include cups and toothpicks in addition to the 3D printed part
Resonator
Modeled off of the Exploritorium's resonator demonstration (https://www.exploratorium.edu/snacks/resonator), this single part print shows the resonant frequent of different length oscillators. When you shake the apparatus at just the right frequencies to match the natural frequency of the different lengths, you can drive them independently to a large amplitude oscillation.
The longer the length, the more slowly it tends to vibrate, and the lower its natural frequency. Thus, the long side will resonate at lower frequencies than the short side.
