![]() ![]() The more friction there is between the marble and the surface it is rolling over, the slower it will travel. Use other items in the shallow tray to introduce more friction. The shallower the angle the slower your marble will travel because the effect of gravity will be less. The equipment can be used to create slopes at different angles for your marble to run along. Use what you know about friction and gravity to help you. You need to be as creative as possible in trying to slow your marble down and defy gravity. Gravity acts on your marble and sends it straight down from the top to the bottom of your tray when you release it. What is happening?Ĭan you beat gravity? Gravity is the force that ‘pushes’ everything to the ground. When all participants/teams have completed the activity, conduct the timed marble runs and see which run was the most effective at slowing the marble down. When you have finished, or at the end of the allotted time, put your marble run aside until everyone has completed the activity, we will test all the marble runs simultaneously at the end.Your marble should not be stationary for any longer than 1 second during the run and, once released, you should not touch your marble again until it reaches the end.The winning team will be the one whose marble takes the longest to reach the finish.The aim is for the marble to travel as slowly as possible between the start and the finish.The marble must start at the start marker and end at the finish marker, what happens in between is entirely up to you!.Tip: Use blu-tac to stop the trays from slipping if needed. Prop the large art tray up on the edge of the shallow tray to ensure the art tray is tilted at the right angle.Use any or all of the contents of the shallow Gratnells tray to make a marble run inside the large art tray.Place all the other equipment into the shallow Gratnells (F1) tray and put the lid on.Blu-tac the start and finish labels to the bottom of the art tray in the top left and bottom right-hand corners respectively.This activity also works as an individual challenge, just increase the amount of time allocated to complete it. Tip: if you are running this activity as a team challenge, use different coloured trays, paper, card and straws for each team. Small start and finish labels (printable available to download).1 x Shallow Gratnells (F1) tray with lid.Go Slow! – STEM Challenge You will need (per team of 4): It can be carried out as a stand-alone activity for students or combined with other activities from the session to form a STEM carousel. This activity was created as part of a Gratnells What’s In My Tray CPD workshop for secondary science technicians to support practical work and delivery of the curriculum. Go slow by Fellowship Agency August 13, 2018 ASE Annual Conference Reading – Secondary 2020. ![]()
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