Fifth graders experiment with student-made aluminum boats to test for buoyancy. They design a boat and determine how many marbles it takes to sink it while recording their data in a spreadsheet. They design a graph using the data and...

For this measurement worksheet, 3rd graders estimate how much each of 9 objects weighs in ounces and pounds. They circle the answer that gives the best estimate of the weight of objects which include a key, an elephant, a chair, and a...