This experiment kit is specifically tailored for middle school physics , providing a comprehensive solution for teaching thermal expansivity. The sturdy copper and iron strips are durable and reliable, making them suitable for repeated use. Students can engage in interactive experiments, enhancing their understanding of thermal properties and their real-world implications. Features -Color:Assorted Color -Material:Wood, copper, iron -Size:22.30X2.30X2.30cm/8.76X0.90X0.90in -materials: this bimetallic strip experiment instrument is made from sturdy materials, ensuring durability and reliability for middle school physics experiments -Precision and accuracy: the bimetallic strip design offers precise and consistent results, making it an tool for conducting various physics experiments in the classroom -Wide range of uses: suitable for numerous physics experiments, this instrument supports comprehensive middle school physics education, enhancing students' understanding of key concepts -Durable and student friendly: built to withstand regular use, this instrument is easy to operate and ideal for students, allowing them to conduct experiments with ease -teaching aid: this instrument provides comprehensive support for middle school physics teaching, helping educators deliver clear and engaging lessons Package list: 3 x Bimetallic sheet device