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EXPERIMENTS WITH MOTION
Original price was: $6.95.$4.87Current price is: $4.87.EXPERIMENTS WITH MOTION
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EXPERIMENTS WITH ELECTRICITY
Original price was: $6.95.$4.87Current price is: $4.87.EXPERIMENTS WITH ELECTRICITY
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Discover Rays (21st Century Basic Skills Library:
Original price was: $24.21.$19.37Current price is: $19.37.Discover Rays (21st Century Basic Skills Library: