Today, we talked about density and predicted if objects will sink or float in water. If they sink their density is over 1 g/mL. If the density is less than 1 g/mL, the objects should float.
In the pictures below, students are building their bungee cords. Click here to see YouTube videos of the Barbie Bungee Jump! Testable Question: How many centimeters of bungee cord (rubber bands) will it take for Barbie to safely bungee 175 cm, but...still have fun? Below are pictures of students engineering the tallest structure possible with time and material restraints. Engineer groups were given 5 notecards, 5 popsicle sticks, and 5 paper clips as their building materials. 1st Hour Pictures: The picture above is of the 2nd place winners of our height competition. The picture below is of our 1st place winners in first hour. 3rd Hour Pictures: 4th Hour Pictures: 6th Hour Pictures: 7th Hour Pictures: Welcome to the 7th Grade Science Blog! This page will be updated with pictures and videos of what we do in our science classroom as often as possible. Check often for updates. :)
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Photo used under Creative Commons from conner395