"Relevant images match informative text in this introduction to wheels and axles. Intended for students in kindergarten through third grade"--Provided by publisher.
"Relevant images match informative text in this introduction to wedges. Intended for students in kindergarten through third grade"--Provided by publisher.
"Relevant images match informative text in this introduction to screws. Intended for students in kindergarten through third grade"--Provided by publisher.
"Relevant images match informative text in this introduction to pulleys. Intended for students in kindergarten through third grade"--Provided by publisher.
Relates the history of the Mars, Inc., a candy business started in the 1920s by Frank C. Mars, who was later joined by his son, Forrest, who expanded the operation to other countries and products before finally becoming the sole owner of Mars following the deaths of his parents.
