1.
2.
Wacky Comparisons: Wacky Ways to Compare Size
by Jessica Gunderson, Mark Wea...
ISBN: 9781623700379
List Price: $14.95
3.
Captain Kidd's Experiments with Sinking and Floating
by Weakland, Mark, Cummings, Troy
ISBN: 9781404872363
4.
Captain Kidd's Experiments with Sinking and Floating
by Weakland, Mark, Cummings, Troy
ISBN: 9781404871441
5.
The Solid Truth about Matter (LOL Physical Science)
by Mark Weakland
ISBN: 9781429693028
List Price: $7.95
7.
Gut Bugs, Dust Mites, and Other Microorganisms You Can't Live Without
by Weakland, Mark
ISBN: 9781429663465
8.
9.
How Tall?: Wacky Ways to Compare Height (Wacky Comparisons)
by Mark Weakland
ISBN: 9781404883239
List Price: $27.32
10.
How Heavy?: Wacky Ways to Compare Weight (Wacky Comparisons)
by Mark Weakland
ISBN: 9781479519125
List Price: $7.95
12.
Onion Juice, Poop, and Other Surprising Sources of Alternative Energy (Nasty (But Useful!) S...
by Weakland, Mark
ISBN: 9781429663472
List Price: $7.95
OUT OF STOCK
See Availability on Amazon13.
17.
The Lonely Existence of Asteroids and Comets (Adventures in Science)
by Mark Weakland
ISBN: 9781429679879
List Price: $7.95
18.
Onion Juice, Poop, and Other Surprising Sources of Alternative Energy
by Weakland, Mark
ISBN: 9781429645362
OUT OF STOCK
See Availability on Amazon19.
Gut Bugs, Dust Mites, and Other Microorganisms You Can't Live Without
by Weakland, Mark
ISBN: 9781429645386
OUT OF STOCK
See Availability on Amazon22.
Las Semillas Se Plantan, Las Semillas Crecen : Seeds Go, Seeds Grow
by Weakland, Mark
ISBN: 9781429682602
23.
Las Burbujas Flotan, Las Burbujas Explotan : Bubbles Float, Bubbles Pop
by Weakland, Mark
ISBN: 9781429682572
24.
The Solid Truth about Matter (LOL Physical Science)
by Mark Weakland
ISBN: 9781429684279
List Price: $26.65