The petri dish iron filings viewer support stand is built using standard Minit Molecular Model Parts which need only minor preparation.
Cut the 210mm long red bond/straw (other colors may be provided) bond into 3 equal lengths of 70mm. Then cut one of the 70mm lengths in half (2 equal 35mm lengths).
Connect the 4 green (other colors may be provided) with 4 cut bonds so that it forms a rectangle. That's it!
See our blog on Magnet Experiments for Kids for more information and ideas.
|22700C||Petri dish, 90x15mm high, plastic, sterile, Each for Kit Use||10|
|33476-2||Iron filings, 2g in plastic bag||10|
|33544||Bar magnet, ferrite, 75x18x6.5mm, red/blue: N/S||20|
|41003-5||Ferrite disc magnet, 10x5mm||40|
|67289C||Bond, Minit, red, 210mm||10|
|67334C||Atom, Minit, Cl, octahedral, green||40|
Very pleased with the product. The magnets are good sized and have a good field to them. They seem sturdy and not easy to break. Haven't set up the viewing trays yet, but will be using them soon. Excited to have something other than a paper plate for field views.
Thanks for the feedback. We did the paper clip pickup test as outlined in Magnet Experiments for Kids after seeing an Amazon review where their ferrite bar magnets could barely lift a single paper clip. We then found they were just strong enough to demonstrate magnetic fields with iron filings.