Home The Four Year Plan High School Roads Homeschool Products Updates About Us Contact Us Links Registration Grammar Privacy Policy Emergency Preparedness Classes	Spring scales are useful in measuring forces. We recommend having both the 500g and 2000g scales available for measuring smaller and larger weights.   Spring Scale (500g) Larger image  Our Price: $2.10     Description: Spring Scale (500g). This economical spring scale is used in many labs to measure force. It is about 7 x 1.5 x 1 inches in size and measures weights up to 500 g. Used in Year Four, Units 1, 2, & 3.   Spring Scale (2000g) Larger image  Our Price: $2.75     Description: Spring Scale (2000g). This economical spring scale is used in many labs to measure force. It is about 7 x 1.5 x 1 inches in size and measures weights up to 2000 g. Used in Year Four, Units 1, 2, & 3.

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