F-1 Friction - Smooth and Rough: Soup cans are pulled over smooth and rough surfaces to explore the effect of surface roughness on friction. Science Process Skills: Observing, Communicating, Co-operating, Measuring, Inferring, Predicting, Interpreting, Controlling Variables.
F-2 Friction - Weight and Pressure: Soup cans are pulled across a surface to demonstrate that an object's weight affects the force of friction. Science Process Skills: Observing, Communicating, Seriating, Co-operating, Measuring, Inferring, Predicting, Interpreting, Controlling Variables.
	F-3 Magnetic Force Fields: Prove that a magnet is surrounded by a magnetic force field. Requires a bar magnet and iron powder (* we sell both, see the order information). Science Process Skills: Observing, Communicating, Co-operating, Measuring, Inferring, Interpreting, Controlling Variables.
F-4 Magnetic Attraction: Prove that a magnetic force attracts some, but not all objects. Classify objects into those that are picked up by a magnet and those that are not. Any magnet will do for experiment. Science Process Skills: Observing, Communicating, Co-operating, Hypothesizing, Inferring, Predicting, Interpreting, Controlling Variables.

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Science Units For Grade 1 Energy in Our Lives Everyday Structures and Systems Characteristics of Objects & Properties of Materials Science Units for Grade 2 Movement Liquids and Solids Energy from Wind and Moving Water Books for Grades 1, 2, and 3 Simple Machines

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