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The Rubik's Impossible Puzzles iridescent tiles change color when viewed from different angles.

Rubik's Impossible Puzzle Cube 3x3

$ 24.00
$ 24.00
A 3x3 cube with different colored squares of green and white.

Rubik's Re-Cube 3x3 Puzzle

$ 19.99
$ 19.99
Set of two enamel pins. Ruth Bader Ginsberg's face with white collar. Silver rectangular pin with the words "I dissent" in black.

Ruth Bader Ginsburg & I Dissent Enameled Pin Set

$ 16.00
$ 16.00
Book cover of 'Sally Ride' from 'Little People, BIG DREAMS' series on a white background

Sally Ride (Little People, Big Dreams Series)

$ 15.99
$ 15.99
Sold Out
A multi-colored illustration of the Golden Gate Bridge with iconic San Francisco buildings behind it, including the Ferry Building, Palace of Fine Arts, Transamerica Pyramid, and San Francisco City Hall.

San Francisco 1000 Piece Puzzle

$ 23.00
$ 23.00
Two cable cars are moving through California street near Chinatown. Red and blue vehicles from the 1940s line the road.

San Francisco Boardgame

$ 34.99
$ 34.99
Schrodinger's Cat Mug (Set of 2)

Schrodinger's Cat Mug (Set of 2)

$ 28.00
$ 28.00
Front cover featuring a colorful illustration of a coral reef and a scuba diver.

Science Comics: Coral Reefs

$ 12.99
$ 12.99
Front cover of the children's book 'Science Comics Rockets: Defying Gravity' by Anne Drozd and Jerzy Drozd, featuring a colorful cartoon illustration of a rocket launching amidst flames and clouds.

Science Comics: Rockets

$ 12.99
$ 12.99
Book cover of 'Science Comics: Spiders' with cartoon spiders and a scientist character on a green background.

Science Comics: Spiders, Woldwide Webs

$ 13.99
$ 13.99
Sold Out
The paperback comic illustrates two active volcanoes at full thrust: a young explorer sits at the base. The sky is muted purple with yellow and orange fire and smoke spewing out the tops of the blue volcanoes.

Science Comics: Volcanoes: Fire and Life by Jon Chad

$ 12.99
$ 12.99
A purple cover depicting three people swept in a tornado and various objects flying around.

Science Comics: Wild Weather: Storms, Meteorology, and Climate

$ 12.99
$ 12.99
The background of the sock is blue, there is a yellow lab in a laboratory coat, and laboratory equipment sits in duplicates on the sock; the cuff, toe, and heel are black.

Science Lab Socks

$ 12.00
$ 12.00
Seven cards sit in three rows with illustrated images on them such as Frank Oppenheimer, Black holes, Schrödinger's Cat, and symbiosis. There is a stack of green cards sitting to the side with microscopes in white.

Science Tarot

$ 29.95
$ 29.95
Sold Out
A 16oz clear pint glass with science tools in silhouette in navy ink.

Science Tools Pint Glass

$ 12.00
$ 12.00
A green front cover with blue text and images.

Scientist Academy

$ 12.99
$ 12.99
All the parts that are in the kit are displayed. There are three sheets of paper in pink, blue, and yellow, an AA battery, a rubber band, a glue stick, a three-volt motor, and four markers.

Scribbling Machine Starter Pack

$ 12.95
$ 12.95
Jigsaw puzzle box with colorful underwater scene design

Seahorses, Sea Stars & Sea Slugs 100 Piece Puzzle

$ 18.99
$ 18.99
The book's softcover surface contains swirling lines of blue, white, gold, and red that create a swirling optical illusion. The trim is black; the text is white and gold.

Seeing: 30 Hands-On Visual Discoveries by the Exploratorium

$ 14.95
$ 14.95
Sold Out
Board game box titled 'Sequoia' with tree design on a white background

Sequoia

$ 19.99
$ 19.99
The game is set up for play along with the red, yellow, and black game box. There are three sets of four cards with solid or outlined squiggles, diamonds, and ovals. A "set" of three is made on the left side.

Set: The Game of Visual Perception

$ 18.00
$ 18.00
A man is depicted surrounded by miniature architectural buildings and trees with red leaves.

Shapes, Lines, and Light: My Grandfather's American Journey by Katie Yamasaki

$ 21.95
$ 21.95
The solar Shashibo features yellow and red swirls of holographic paper in open black packaging.

Shashibo Puzzle Cube

$ 27.99
$ 27.99
A blue box with a shiny silver border. An image of Saturn and various space related cards are on the front.

Shiny Space Memory & Matching Game

$ 21.99
$ 21.99