Mark Weakland

How Tall?: Wacky Ways to Compare Height

Mark Weakland

$8.39 - $62.69

Thud!: Wile E. Coyote Experiments with Forces and Motion

Mark Weakland

$4.89 - $22.60

Smash!: Wile E. Coyote Experiments with Simple Machines

Mark Weakland

$5.89 - $23.28

How Heavy?

Mark Weakland

$9.74

Zoom!: Wile E. Coyote Experiments with Speed and Velocity

Mark Weakland

$6.59 - $23.28

Whoosh!: Wile E. Coyote Experiments with Flight and Gravity

Mark Weakland

$6.99 - $23.28

Captain Kidd's Crew Experiments with Sinking and Floating (In the Science Lab)

Mark Weakland

$4.69 - $20.83

The Solid Truth about Matter

Mark Weakland

$6.29 - $12.19

When Amelia Earhart Built a Roller Coaster

Mark Weakland

$4.69 - $22.99

Seeds Go, Seeds Grow

Mark Weakland

$6.09 - $9.00

Kaboom!: Wile E. Coyote Experiments with Chemical Reactions

Mark Weakland

$23.28 - $30.29

Hockey Shapes (SI Kids Rookie Books)

Mark Weakland

$4.19 - $10.19

When Martin Luther King Jr. Wore Roller Skates

Mark Weakland

$5.79 - $21.64

Wile E. Coyote's Physical Science for Super Geniuses in Training

Mark Weakland

$12.06

Football ABC (SI Kids Rookie Books)

Mark Weakland

$5.39 - $9.09

Scooby-Doo! Unmasks Monsters: The Truth Behind Zombies, Werewolves, and Other Spooky Creatures

Mark Weakland

$6.89 - $8.71

Scooby-Doo! an Addition Mystery: The Case of the Angry Adder

Mark Weakland

$12.19 - $21.64

Yogi Bear's Guide to Plants

Mark Weakland

$16.19 - $21.64

Clang!

Mark Weakland

$10.69 - $22.60

Yogi Bear's Guide to Rocks

Mark Weakland

$88.19

Zombies and Forces and Motion

Mark Weakland

$4.89 - $8.39

Football Opposites

Mark Weakland

$4.69 - $21.24

Football Colors (SI Kids Rookie Books)

Mark Weakland

$5.59 - $15.19

When Ruth Bader Ginsburg Chewed 100 Sticks of Gum

Mark Weakland

$5.29 - $21.02

When Thomas Edison Fed Someone Worms

Mark Weakland

$8.39 - $21.64

Scooby-Doo! and the Truth Behind Vampires

Mark Weakland

$16.79 - $20.42

DO-4U the Robot Experiences Forces and Motion

Mark Weakland

$4.89 - $9.74

When Wilma Rudolph Played Basketball

Mark Weakland

$5.19 - $21.64

Scooby-Doo! a Subtraction Mystery: The Case of the Disappearing Doughnuts

Mark Weakland

$17.19 - $21.64

When Walt Disney Rode a Pig

Mark Weakland

$4.89 - $21.64