This kit shows you how to make a scale to weigh many household objects by use of Hooke's Law. Comes with a tape measure, a set of colorful plastic hex weights, a highly accurate special spring, and a detailed activity guide. Ages 7+.

• This kit shows you how to make a scale to weigh many household objects by use of Hooke's Law
• This kit comes with a tape measure, a set of colorful plastic hex weights, a highly accurate special spring, and a detailed activity guide
• For ages 7+
• Develops hand and eye coordination