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$12.31, Jan 18 - Jan 19 $12.43, Jan 20 - Apr 18 $12.75, Apr 18 - Jun 12 $12.75, Apr 18 - Jun 12 $8.77, May 3 - May 9 $7.82, May 3 - May 7 $12.75, Apr 18 - Jun 12 $8.77, May 3 - May 9 $7.81, May 8 6:58 am $12.75, Apr 18 - Jun 12 $8.76, May 10 - May 12 $7.79, May 10 1:18 pm $12.75, Apr 18 - Jun 12 $8.76, May 10 - May 12 $7.80, May 11 - May 12 $12.75, Apr 18 - Jun 12 $7.80, May 12 - May 14 $7.79, May 13 - May 14 $12.75, Apr 18 - Jun 12 $7.79, May 16 - May 17 $7.78, May 16 - May 17 $12.75, Apr 18 - Jun 12 $7.78, May 18 - May 22 $7.77, May 18 6:56 pm $12.75, Apr 18 - Jun 12 $7.78, May 18 - May 22 $7.78, May 19 - May 23 $12.75, Apr 18 - Jun 12 $8.07, May 23 - May 28 $7.78, May 19 - May 23 $12.75, Apr 18 - Jun 12 $8.07, May 23 - May 28 $7.77, May 23 - May 25 $12.75, Apr 18 - Jun 12 $8.07, May 23 - May 28 $7.76, May 25 - May 28 $12.75, Apr 18 - Jun 12 $7.78, May 28 - May 31 $7.77, May 29 12:48 pm $12.75, Apr 18 - Jun 12 $7.78, May 28 - May 31 $7.78, May 30 - Jun 1 $12.75, Apr 18 - Jun 12 $8.07, Jun 1 - Jun 3 $7.76, Jun 3 3:58 am $12.75, Apr 18 - Jun 12 $7.75, Jun 3 - Jun 5 $7.11, Jun 4 - Jun 8 $12.75, Apr 18 - Jun 12 $7.11, Jun 4 - Jun 8 $7.11, Jun 6 2:57 pm $12.75, Apr 18 - Jun 12 $7.10, Jun 9 - Jun 12 $7.10, Jun 7 - Jun 9 $12.75, Apr 18 - Jun 12 $7.10, Jun 9 - Jun 12 $7.09, Jun 9 - Jun 11 $12.09, Jun 13 - Aug 15 $7.11, Jun 13 - Jun 21 $7.10, Jun 11 - Jun 22 $12.09, Jun 13 - Aug 15 $7.09, Jun 24 - Jun 25 $7.09, Jun 23 - Jun 24 $12.09, Jun 13 - Aug 15 $7.08, Jun 26 - Jul 7 $7.07, Jun 26 - Jun 27 $12.09, Jun 13 - Aug 15 $7.08, Jun 26 - Jul 7 $7.08, Jun 27 - Jun 28 $12.09, Jun 13 - Aug 15 $7.08, Jun 26 - Jul 7 $7.05, Jun 30 7:43 am $12.09, Jun 13 - Aug 15 $7.08, Jun 26 - Jul 7 $7.04, Jul 1 - Jul 5 $12.09, Jun 13 - Aug 15 $7.08, Jun 26 - Jul 7 $7.03, Jul 7 7:29 am $12.09, Jun 13 - Aug 15 $7.03, Jul 8 1:37 pm $7.02, Jul 8 1:37 pm $12.09, Jun 13 - Aug 15 $7.00, Jul 11 - Jul 30 $7.00, Jul 11 12:42 am $12.09, Jun 13 - Aug 15 $7.00, Jul 11 - Jul 30 $6.99, Jul 12 - Jul 14 $12.09, Jun 13 - Aug 15 $7.00, Jul 11 - Jul 30 $6.97, Jul 17 - Jul 18 $12.09, Jun 13 - Aug 15 $7.00, Jul 11 - Jul 30 $6.95, Jul 20 12:19 am $12.09, Jun 13 - Aug 15 $7.00, Jul 11 - Jul 30 $6.93, Jul 20 - Jul 23 $12.09, Jun 13 - Aug 15 $7.00, Jul 11 - Jul 30 $6.91, Jul 24 - Jul 26 $12.09, Jun 13 - Aug 15 $7.00, Jul 11 - Jul 30 $6.87, Jul 27 - Jul 29 $12.09, Jun 13 - Aug 15 $7.00, Jul 11 - Jul 30 $6.86, Jul 30 2:38 pm $12.09, Jun 13 - Aug 15 $6.85, Aug 1 10:08 am $6.82, Aug 1 10:08 am $12.09, Jun 13 - Aug 15 $6.80, Aug 3 - Aug 6 $6.79, Aug 4 - Aug 5 $12.09, Jun 13 - Aug 15 $6.76, Aug 7 - Aug 11 $6.74, Aug 8 - Aug 9 $12.09, Jun 13 - Aug 15 $6.76, Aug 7 - Aug 11 $6.73, Aug 10 7:16 am $12.09, Jun 13 - Aug 15 $6.70, Aug 12 - Aug 17 $6.70, Aug 12 - Aug 16 $11.94, Aug 16 - Aug 25 $6.70, Aug 12 - Aug 17 $6.70, Aug 12 - Aug 16 $11.94, Aug 16 - Aug 25 $6.66, Aug 18 3:57 am $6.66, Aug 18 3:57 am $11.94, Aug 16 - Aug 25 $6.62, Aug 20 6:34 pm $6.61, Aug 20 6:34 pm $11.94, Aug 16 - Aug 25 $6.58, Aug 21 - Aug 26 $6.58, Aug 21 - Aug 25 $12.09, Aug 26 - Oct 9 $6.55, Aug 27 - Aug 28 $6.55, Aug 27 2:00 am $12.09, Aug 26 - Oct 9 $6.53, Aug 29 - Aug 30 $6.53, Aug 29 - Aug 30 $12.09, Aug 26 - Oct 9 $6.52, Aug 31 - Sep 27 $6.51, Aug 31 3:53 pm $12.09, Aug 26 - Oct 9 $6.52, Aug 31 - Sep 27 $6.52, Sep 1 - Sep 3 $12.09, Aug 26 - Oct 9 $8.04, Sep 4 5:08 am $6.52, Aug 31 - Sep 27 $12.09, Aug 26 - Oct 9 $6.52, Aug 31 - Sep 27 $6.52, Sep 5 - Sep 8 $12.09, Aug 26 - Oct 9 $8.10, Sep 10 - Sep 12 $6.52, Aug 31 - Sep 27 $12.09, Aug 26 - Oct 9 $6.52, Aug 31 - Sep 27 $6.52, Sep 13 - Sep 16 $12.09, Aug 26 - Oct 9 $8.10, Sep 18 - Sep 25 $6.52, Aug 31 - Sep 27 $12.09, Aug 26 - Oct 9 $8.69, Sep 27 6:32 pm $6.52, Aug 31 - Sep 27 $12.09, Aug 26 - Oct 9 $8.84, Sep 29 - Oct 1 $6.51, Sep 29 - Oct 9 $12.09, Aug 26 - Oct 9 $8.10, Oct 3 - Oct 9 $6.51, Sep 29 - Oct 9 $9.60, Oct 11 - Oct 13 $5.61, Oct 11 - Oct 15 $5.61, Oct 11 - Oct 15 $12.09, Oct 15 - Oct 20 $5.61, Oct 11 - Oct 15 $5.61, Oct 11 - Oct 15 $12.09, Oct 15 - Oct 20 $8.09, Oct 17 7:09 pm $5.59, Oct 17 7:09 pm $12.09, Oct 15 - Oct 20 $5.58, Oct 20 - Oct 22 $5.58, Oct 20 - Oct 22 $11.51, Oct 22 - Oct 26 $5.58, Oct 20 - Oct 22 $5.58, Oct 20 - Oct 22 $11.51, Oct 22 - Oct 26 $7.51, Oct 24 11:48 am $5.56, Oct 24 11:48 am $11.51, Oct 22 - Oct 26 $7.52, Oct 26 8:41 pm $4.16, Oct 26 8:41 pm $12.09, Oct 31 - Nov 20 $8.10, Oct 31 9:11 pm $4.09, Oct 31 9:11 pm $12.09, Oct 31 - Nov 20 $4.02, Nov 7 8:33 pm $3.98, Nov 7 8:33 pm $12.09, Oct 31 - Nov 20 $8.10, Nov 11 - Nov 20 $6.48, Nov 11 3:52 am $12.09, Oct 31 - Nov 20 $8.10, Nov 11 - Nov 20 $6.46, Nov 16 - Nov 22 $11.96, Nov 22 - Nov 29 $7.97, Nov 22 - Nov 29 $6.46, Nov 16 - Nov 22 $11.96, Nov 22 - Nov 29 $7.97, Nov 22 - Nov 29 $6.28, Nov 24 - Dec 20 $11.84, Nov 30 - Dec 8 $7.85, Nov 30 - Dec 8 $6.28, Nov 24 - Dec 20 $11.78, Dec 10 - Dec 18 $7.79, Dec 10 - Dec 18 $6.28, Nov 24 - Dec 20 $11.66, Dec 20 - Jan 9 $7.67, Dec 20 - Dec 29 $6.28, Nov 24 - Dec 20 $11.66, Dec 20 - Jan 9 $6.15, Dec 29 - Jan 7 $6.15, Dec 31 - Jan 1 $11.66, Dec 20 - Jan 9 $7.67, Jan 3 - Jan 5 $6.15, Dec 29 - Jan 7 $11.66, Dec 20 - Jan 9 $6.15, Dec 29 - Jan 7 $6.15, Jan 6 - Jan 7 $11.66, Dec 20 - Jan 9 $5.63, Jan 8 3:32 pm $5.16, Jan 8 3:32 pm $11.54, Jan 10 - Jan 18 $3.26, Jan 10 6:23 pm $3.26, Jan 10 6:23 pm $11.54, Jan 10 - Jan 18 $2.95, Jan 12 1:26 am $2.75, Jan 12 1:26 am $11.54, Jan 10 - Jan 18 $7.55, Jan 13 - Jan 18 $1.99, Jan 13 - Jan 15 $11.54, Jan 10 - Jan 18 $7.55, Jan 13 - Jan 18 $3.10, Jan 16 9:03 pm $11.54, Jan 10 - Jan 18 $7.55, Jan 13 - Jan 18 $5.44, Jan 18 11:51 am $11.42, Jan 20 - Jan 26 $4.50, Jan 21 5:06 pm $3.47, Jan 21 5:06 pm $11.42, Jan 20 - Jan 26 $7.43, Jan 23 7:51 am $4.52, Jan 23 - Feb 2 $11.42, Jan 20 - Jan 26 $4.52, Jan 23 - Feb 2 $4.50, Jan 25 12:42 am $11.30, Jan 28 - Feb 6 $4.52, Jan 23 - Feb 2 $4.47, Jan 28 8:45 am $11.30, Jan 28 - Feb 6 $4.52, Jan 23 - Feb 2 $4.44, Jan 30 2:25 am $11.30, Jan 28 - Feb 6 $4.52, Jan 23 - Feb 2 $4.41, Jan 31 9:53 pm $11.30, Jan 28 - Feb 6 $7.11, Feb 2 6:23 pm $4.52, Jan 23 - Feb 2 $11.30, Jan 28 - Feb 6 $7.31, Feb 4 - Feb 6 $6.60, Feb 4 - Feb 10 $11.18, Feb 7 - Feb 15 $7.19, Feb 7 - Feb 15 $6.60, Feb 4 - Feb 10 $11.18, Feb 7 - Feb 15 $7.19, Feb 7 - Feb 15 $6.50, Feb 11 - Feb 21 $11.06, Feb 17 - Feb 26 $7.07, Feb 17 - Feb 24 $6.50, Feb 11 - Feb 21 $11.06, Feb 17 - Feb 26 $7.07, Feb 17 - Feb 24 $6.40, Feb 22 - Feb 26 $11.06, Feb 17 - Feb 26 $6.40, Feb 22 - Feb 26 $4.99, Feb 26 12:47 am $10.94, Feb 27 - Mar 8 $6.38, Feb 27 - Mar 2 $4.84, Feb 27 10:42 pm $10.94, Feb 27 - Mar 8 $6.38, Feb 27 - Mar 2 $4.76, Mar 2 7:31 am $10.94, Feb 27 - Mar 8 $5.97, Mar 4 - Mar 8 $4.72, Mar 4 8:22 am $10.94, Feb 27 - Mar 8 $5.97, Mar 4 - Mar 8 $4.69, Mar 6 9:53 am $10.94, Feb 27 - Mar 8 $5.97, Mar 4 - Mar 8 $4.67, Mar 8 10:12 am $11.15, Mar 10 - Mar 17 $7.16, Mar 10 - Mar 17 $6.40, Mar 10 5:11 pm $11.15, Mar 10 - Mar 17 $7.16, Mar 10 - Mar 17 $5.99, Mar 13 - Mar 29 $11.09, Mar 20 - Mar 29 $7.10, Mar 20 - Mar 29 $5.99, Mar 13 - Mar 29 $10.97, Mar 31 - Apr 9 $6.98, Mar 31 - Apr 9 $6.36, Apr 2 5:57 am $10.97, Mar 31 - Apr 9 $6.98, Mar 31 - Apr 9 $6.34, Apr 3 4:39 pm $10.97, Mar 31 - Apr 9 $6.98, Mar 31 - Apr 9 $6.29, Apr 6 7:41 am $10.97, Mar 31 - Apr 9 $6.98, Mar 31 - Apr 9 $6.37, Apr 9 1:15 am $10.85, Apr 11 - Apr 18 $6.86, Apr 11 - Apr 18 $6.26, Apr 11 11:19 pm $10.85, Apr 11 - Apr 18 $6.86, Apr 11 - Apr 18 $6.21, Apr 14 2:26 pm $10.85, Apr 11 - Apr 18 $6.86, Apr 11 - Apr 18 $6.15, Apr 17 5:59 am $10.85, Apr 11 - Apr 18 $6.86, Apr 11 - Apr 18 $6.13, Apr 18 12:45 pm $10.74, Apr 21 - Apr 24 $6.75, Apr 21 - Apr 24 $6.25, Apr 21 5:45 am $10.74, Apr 21 - Apr 24 $6.75, Apr 21 - Apr 24 $6.20, Apr 24 12:52 am $10.74, Apr 27 4:17 am $6.15, Apr 27 4:17 am $6.09, Apr 27 4:17 am $10.63, Apr 30 - May 9 $6.06, Apr 30 1:14 am $6.05, Apr 30 1:14 am $10.63, Apr 30 - May 9 $6.64, May 2 - May 12 $6.10, May 2 - Jun 7 $10.67, May 12 - May 22 $6.64, May 2 - May 12 $6.10, May 2 - Jun 7 $10.67, May 12 - May 22 $6.10, May 2 - Jun 7 $6.09, May 14 5:17 am $10.67, May 12 - May 22 $6.68, May 18 - May 22 $6.10, May 2 - Jun 7 $10.71, May 26 - Jun 2 $6.72, May 26 - Jun 2 $6.10, May 2 - Jun 7 $10.75, Jun 7 - Jun 13 $6.10, May 2 - Jun 7 $6.04, Jun 7 4:09 am $10.75, Jun 7 - Jun 13 $5.99, Jun 11 - Jul 2 $5.92, Jun 11 5:32 am $10.75, Jun 7 - Jun 13 $5.99, Jun 11 - Jul 2 $5.83, Jun 13 5:21 am $10.64, Jun 16 - Jun 22 $6.65, Jun 16 - Jun 22 $5.99, Jun 11 - Jul 2 $10.85, Jun 26 - Jul 12 $6.86, Jun 26 - Jul 7 $5.99, Jun 11 - Jul 2 $10.85, Jun 26 - Jul 12 $6.86, Jun 26 - Jul 7 $5.98, Jul 7 1:19 am $10.85, Jun 26 - Jul 12 $5.76, Jul 12 2:18 pm $5.65, Jul 12 2:18 pm $10.68, Jul 16 - Jul 26 $6.69, Jul 16 - Jul 19 $5.39, Jul 16 6:36 am $10.68, Jul 16 - Jul 26 $6.69, Jul 16 - Jul 19 $5.23, Jul 19 8:33 pm $10.68, Jul 16 - Jul 26 $5.01, Jul 23 9:30 am $5.01, Jul 23 9:30 am $10.68, Jul 16 - Jul 26 $4.86, Jul 26 11:12 pm $4.84, Jul 26 11:12 pm $12.09, Jul 30 - Oct 5 $8.10, Jul 30 - Aug 6 $4.63, Jul 30 1:12 pm $12.09, Jul 30 - Oct 5 $8.10, Jul 30 - Aug 6 $4.39, Aug 3 3:08 am $12.09, Jul 30 - Oct 5 $8.10, Jul 30 - Aug 6 $4.14, Aug 6 6:47 pm $12.09, Jul 30 - Oct 5 $3.85, Aug 10 2:48 pm $3.84, Aug 10 2:48 pm $12.09, Jul 30 - Oct 5 $8.02, Aug 14 9:41 am $3.60, Aug 14 - Aug 18 $12.09, Jul 30 - Oct 5 $3.60, Aug 14 - Aug 18 $3.60, Aug 18 3:19 am $12.09, Jul 30 - Oct 5 $8.10, Aug 21 - Sep 4 $3.64, Aug 21 9:43 pm $12.09, Jul 30 - Oct 5 $8.10, Aug 21 - Sep 4 $3.42, Aug 25 3:49 pm $12.09, Jul 30 - Oct 5 $8.10, Aug 21 - Sep 4 $3.18, Aug 29 10:11 am $12.09, Jul 30 - Oct 5 $8.10, Aug 21 - Sep 4 $3.73, Sep 2 - Sep 8 $12.09, Jul 30 - Oct 5 $3.73, Sep 2 - Sep 8 $3.73, Sep 8 12:22 am $12.09, Jul 30 - Oct 5 $3.70, Sep 11 9:29 pm $3.69, Sep 11 9:29 pm $12.09, Jul 30 - Oct 5 $3.50, Sep 15 6:49 pm $3.50, Sep 15 6:49 pm $12.09, Jul 30 - Oct 5 $3.40, Sep 17 6:06 pm $3.40, Sep 17 6:06 pm $12.09, Jul 30 - Oct 5 $8.10, Sep 21 - Sep 27 $3.18, Sep 21 3:31 pm $12.09, Jul 30 - Oct 5 $8.10, Sep 21 - Sep 27 $3.73, Sep 25 - Sep 27 $12.09, Jul 30 - Oct 5 $3.72, Oct 1 2:19 pm $3.71, Oct 1 2:19 pm $12.09, Jul 30 - Oct 5 $8.10, Oct 5 4:11 pm $3.73, Oct 5 - Oct 17 $11.96, Oct 9 - Oct 17 $7.97, Oct 9 - Oct 17 $3.73, Oct 5 - Oct 17 $11.98, Oct 21 - Oct 27 $7.99, Oct 21 - Oct 27 $6.00, Oct 21 - Nov 4 $12.00, Oct 31 - Nov 8 $6.00, Oct 21 - Nov 4 $6.00, Oct 31 12:20 pm $12.00, Oct 31 - Nov 8 $8.01, Nov 4 - Nov 8 $6.00, Oct 21 - Nov 4 $12.00, Oct 31 - Nov 8 $8.66, Nov 8 - Nov 23 $8.01, Nov 4 - Nov 8 $12.02, Nov 12 - Nov 19 $8.66, Nov 8 - Nov 23 $8.03, Nov 12 - Nov 19 $12.04, Nov 23 - Nov 28 $8.66, Nov 8 - Nov 23 $8.05, Nov 23 - Nov 28 $12.04, Nov 23 - Nov 28 $8.05, Nov 23 - Nov 28 $7.00, Nov 28 - Dec 8 $12.06, Dec 3 - Dec 13 $8.07, Dec 3 - Dec 8 $7.00, Nov 28 - Dec 8 $12.06, Dec 3 - Dec 13 $3.65, Dec 13 3:54 am $3.63, Dec 13 3:54 am $12.08, Dec 18 - Jan 4 $8.09, Dec 18 - Dec 28 $3.40, Dec 18 6:38 am $12.08, Dec 18 - Jan 4 $8.09, Dec 18 - Dec 28 $3.12, Dec 23 3:00 am $12.08, Dec 18 - Jan 4 $8.09, Dec 18 - Dec 28 $2.94, Dec 28 - Jan 4 $12.08, Dec 18 - Jan 4 $2.95, Jan 2 - Jan 9 $2.94, Dec 28 - Jan 4 $12.10, Jan 9 - Jan 24 $2.95, Jan 2 - Jan 9 $2.25, Jan 9 9:22 am $12.10, Jan 9 - Jan 24 $7.65, Jan 14 6:59 am $2.94, Jan 14 6:59 am $12.10, Jan 9 - Jan 24 $8.11, Jan 19 - Jan 24 $6.30, Jan 19 7:16 am $12.10, Jan 9 - Jan 24 $8.11, Jan 19 - Jan 24 $5.27, Jan 24 - Feb 3 $12.12, Jan 29 - Feb 13 $5.27, Jan 24 - Feb 3 $5.27, Jan 29 - Feb 3 $12.12, Jan 29 - Feb 13 $7.00, Feb 8 11:23 am $7.00, Feb 8 11:23 am $12.12, Jan 29 - Feb 13 $8.13, Feb 13 5:20 pm $5.53, Feb 13 5:20 pm $12.14, Feb 19 - Feb 24 $8.15, Feb 19 1:54 am $4.52, Feb 19 1:54 am $12.14, Feb 19 - Feb 24 $8.11, Feb 24 2:43 pm $3.38, Feb 24 2:43 pm $12.16, Mar 5 12:53 am $7.43, Mar 5 12:53 am $2.95, Mar 5 - Mar 28 $12.09, Mar 11 - Apr 9 $5.59, Mar 11 8:32 am $2.95, Mar 5 - Mar 28 $12.09, Mar 11 - Apr 9 $8.10, Mar 17 5:34 am $2.95, Mar 5 - Mar 28 $12.09, Mar 11 - Apr 9 $7.76, Mar 28 5:27 pm $2.95, Mar 5 - Mar 28 $12.09, Mar 11 - Apr 9 $2.95, Apr 9 4:29 am $2.94, Apr 9 4:29 am 32,348 1,077,726
1,171,875
781,250
390,625
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2016
Price Details
New
Latest
$12.09 15 hrs ago
Highest
$12.75 Apr 18, '14
Lowest
$9.60 Oct 11, '14
Average
$12.09 (30d avg)
Added
Jan 18, 2014
3rd Party New
Latest
$2.95 15 hrs ago
Highest
$8.84 Sep 29, '14
Lowest
$2.95 15 hrs ago
Average
$7.46 (30d avg)
Added
Jan 18, 2014
3rd Party Used
Latest
$2.94 15 hrs ago
Highest
$8.77 May 3, '14
Lowest
$1.99 Jan 13, '15
Average
$2.95 (30d avg)
Added
Jan 18, 2014
Sales Rank
30 day average: 407,736 490,770
Product Description
You may not be old enough to drive, but that doesnt mean you cant satisfy your need for speed. Author and physics teacher Bobby Mercer shows how to use mousetraps, rubber bands, chemical reactions, gravity, and air pressure to power fast-moving vehicles. Each of the 25 easy-to-build racecars is constructed for little or no cost using recycled and repurposed materials. Retrofit a toy car with a model plane propeller to make an air-powered Prop Car. Turn a potato chip can, a rubber band, and weights into a Chip-Can Dancer. Or use an effervescent tablet in a small canister as an impressive rocket engine for a Mini Pop Car. Every project in contains a materials list and detailed step-by-step instructions with photos for easy assembly. Mercer also includes explanations of the science behind each racecar, including concepts such as friction, Newtons laws of motion, kinetic and potential energy, and more. These projects are perfect for science fairs or design competitions, or just having fun!
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