购买 4th graders use simple machines to make something at home better

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Thames & Kosmos Simple Machines Kit | Elementary-Middle School | Kids | Durable
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Simple Machines for Kids: Science and Engineering for Children - FreeSchool
https://patreon.com/freeschool - Help support more content like this! Simple machines have been helping people to do work for thousands of years! The lever, wheel and axle, pulley, inclined plane, wedge, and screw each have a job to do. Some amplify force, some change its direction, and some reduce friction or create mechanical advantage. Come ...
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购买 4th graders use simple machines to make something at home better

广告
关于我们的广告
$29.95
Thames & Kosmos Simple Machines Kit | Elementary-Middle School | Kids | Durable
School Specialty
547
$29.95
Thames & Kosmos Simple Machines Kit | Elementary-Middle School | Kids | Durable
School Specialty
$34.99
STEM Simple Machines Activity Set
School Outfitters
$34.99
STEM Simple Machines Activity Set
School Outfitters
$29.73
Learning Advantage Simple Machine, Pendulum, Grades 4-12
Office Depot
$29.73
Learning Advantage Simple Machine, Pendulum, Grades 4-12
Office Depot
$1,545.00
PCS Edventures Simple Machines Enrichment Program | Grades 4-6 | Kids
School Specialty
$1,545.00
PCS Edventures Simple Machines Enrichment Program | Grades 4-6 | Kids
School Specialty
$29.73
Learning Advantage Simple Machine, Block & Tackle, Grades 4-12
Office Depot
$29.73
Learning Advantage Simple Machine, Block & Tackle, Grades 4-12
Office Depot
$26.89
Simple Machines | Thames & Kosmos
Christianbook.com
1
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Simple Machines | Thames & Kosmos
Christianbook.com
$10.50
The Abcs Of Simple Machines
Amazon.com
$10.50
The Abcs Of Simple Machines
Amazon.com