Prove that electrical current decreases as resistance increases. Build an instrument that will test this--a rheostat.

Available at SCHOODOODLE.COM

Certificates Science Achievement 36/Pk 8-1/2 x 11 inkjet/Laser
Achievement Awards are 8.5" x 11" in size with beautiful, authentic designs printed in full color on high quality paper.

Magnet Kit Very First Ages 6 And Up
Includes over 20 magnets and accessories with built-in play-surface and activity booklet!

Spring Scales 1000g/2.2 Lb.
Sturdy plastic, calibrated in grams and pounds. Zero adjustment dial for accuracy.

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