In this science worksheet, students perform an investigation about sound waves and vibration. Students use a pan of water and toothpicks to make and observe ripples. Students answer 4 essay questions about their observations.

In this lever worksheet, students read and do the 8 detailed steps in an investigation about levers. Students answer 2 essay questions and record their data on a chart.

In this science investigation worksheet, students follow the directions to perform an experiment with inclined planes. Students record their data on a chart and answer 2 essay questions.

Can exercise really help our brain work better? This PBS site discovers if this is really true by taking you into the worlds of Jada and Maurna to find out.