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You won't have any problem keeping your kids interested in these workbooks! The hands-on activities explore fascinating science topics while developing skills in observation, analysis, prediction, comparison, critical thinking, recording information, change, diversity, structure, cause and effect, and function. Each illustrated workbook features step-by-step lessons, record sheets, logbook forms, minibooks, and picture cards. Concepts covered in this workbook are: 1.Work is done when a force is used to move something over a distance. 2.Some jobs take more work than others. 3.Machines make work easier. 4.The lever is a simple machine. 5.The wheel and axle is a simple machine. 6.The pulley is a simple machine. 7.The inclined plane is a simple machine. 8.The screw is a simple machine. 9.The wedge is a simple machine. Each concept is presented by reading a story, then doing simple experiments about the concept, and collecting and recording the data. Grades 1-3.
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