Plate magnets are best used for metal experiments. One effective idea is to have children figure out the distance that the magnet will remain effective. They can then write out lines on the surface of a table that relate to how far they assume the magnet can reach. Children will appreciate the competitive aspect of this game. They can then place paperclips at the lines and release them to see how far the magnet can go.
Toothpicks may seem too small and simple to be beneficial, but students can learn a lot about design if you tell them to make bridges out of toothpicks. Only allow them to use glue and toothpicks. Give them free control over the ways that they carry out the design -- you will want them to end up with both strong and weak designs. Then, have the children experiment with the bridges to see which ones can sustain the most weight.
Bunsen burners are propane torches that rest on top of tables. There is a circular holder that contains the beakers and a long rod that reaches over the flame. The main idea of the Bunsen burner is to show students how to heat various chemical mixtures over an open flame. This can lead to all types of intriguing chemical reactions. Students will first be interested in this because the burners will appear easy and fun to use, but in the end they will figure out how compounds are made and how chemicals mix.
If you use toothpicks, plate magnets, and Bunsen burners, you can renovate the science experiments that take place in your classroom. You can increase the chances that students will look forward to coming to class and they will relish in the activities more. If you can spark this change in their approach to knowledge, you can offer them a lot more.