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  • Roll, Slope, and Slide: A Book About Ramps (Amazing Science: Simple Machines)

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Buy from Amazon $7.95$2.96 $6.90 $5.80 $4.70 $3.60 $2.50 Aug Nov Feb May Aug Nov Feb May Aug Nov Feb May 2013 2014 2015 2016 $7.15, Jul 9 - Nov 12$7.15, Jul 9 - Nov 12$4.50, May 3 1:06 am$4.28, May 3 1:06 am$7.15, Jul 9 - Nov 12$4.45, May 4 - May 5$4.24, May 5 5:36 pm$7.15, Jul 9 - Nov 12$3.51, May 7 - Jun 12$3.43, May 6 - Jun 12$7.15, Jul 9 - Nov 12$3.14, Jul 3 - Jul 5$3.06, Jul 3 - Jul 5$7.15, Jul 9 - Nov 12$3.06, Jul 8 - Jul 9$2.98, Jul 8 - Jul 9$7.15, Jul 9 - Nov 12$3.14, Jul 10 3:15 pm$3.06, Jul 10 3:15 pm$7.15, Jul 9 - Nov 12$3.06, Jul 13 - Jul 15$3.06, Jul 14 11:38 am$7.15, Jul 9 - Nov 12$3.04, Jul 17 - Jul 18$2.96, Jul 17 - Jul 18$7.15, Jul 9 - Nov 12$3.14, Jul 19 - Jul 21$3.06, Jul 19 - Jul 21$7.15, Jul 9 - Nov 12$3.13, Jul 23 - Jul 30$3.05, Jul 23 - Jul 30$7.15, Jul 9 - Nov 12$3.15, Jul 31 - Aug 15$3.07, Jul 31 - Aug 15$7.15, Jul 9 - Nov 12$4.37, Aug 16 - Aug 29$4.15, Aug 16 - Aug 29$7.15, Jul 9 - Nov 12$3.22, Aug 30 - Sep 13$3.14, Aug 30 - Sep 13$7.15, Jul 9 - Nov 12$3.21, Sep 15 - 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Price Details

New

Latest $7.95 26 mins ago
Highest $7.95 Dec 7, '15
Lowest $6.29 Aug 5, '15
Average $7.95 (30d avg)
$7.95 (90d avg)
$7.93 (180d avg)
$7.49 (365d avg)
$7.34 (Lifetime average)
Added May 11, 2013

3rd Party New

Latest $3.63 26 mins ago
Highest $4.28 May 3, '14
Lowest $3.04 Jul 17, '14
Average $3.56 (30d avg)
$3.63 (90d avg)
$3.67 (180d avg)
$3.63 (365d avg)
$3.58 (Lifetime average)
Added May 11, 2013

3rd Party Used

Latest $4.24 26 mins ago
Highest $4.51 Jan 14, '15
Lowest $2.96 Jul 17, '14
Average $4.11 (30d avg)
$4.02 (90d avg)
$3.89 (180d avg)
$3.82 (365d avg)
$3.70 (Lifetime average)
Added May 11, 2013

Sales Rank

30 day average: 37,734
90 day average: 53,723

Product Description

Describes the different kinds, uses, and benefits of inclined planes and ramps. Includes an activity.

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