How does the mass of an object affect how fast it falls? As third graders are exploring forces in more depth, they are discovering what happens when objects that have different masses are dropped from the same height. Will they reach the ground at different times? The same time? Why? Alongside forces, they'll be looking at planning an investigation. Is it really a fair test if we drop them from different heights? At different times? Put a small force on one object and not the other? | |
So what makes something move? Or stay still? Third graders are investigating forces and how they can change something. We'll be looking at force and motion as well as static electricity and magnetism.
We started our unit on forces by playing a simple game of Tug-of-War. We're drawing models to show how different forces can affect different situations! Forces can vary in direction and strength. What happens when we change the forces? To start our time together, third graders are doing a quick review of engineering. We completed this sentence to read: Engineers solve problems. They design technology that meets peoples' needs or wants. Each group received a paper bag filled with a common technology like pencils, scissors, or envelopes. Remember that technology is anything that is used to solve a problem and it does NOT require electricity, a common misconception. Technology designed by engineers is literally everywhere and has made our lives much easier! |
Mrs. BrinzaUnique fact! Some rocks have magnetic properties. Archives
June 2015
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