Moh's Hardness Crystalline Form This Human Giant Heart is

This Human Giant Heart is 3X life size

resistance

Light measurement with zero adjustment by push button

Each Rubber Band Racer Activity Pack comes with a printed Go-Guide to get kids started and inspire them to make their own unique designs

Moh's Hardness Crystalline Form This Human Giant Heart isHoused in a compartmented collection box, and an identification list is included. 9 numbered samples, 1" x 1" streak plate magnet glass slide copper strip. Minerals: Talc, Selenite, Calcite, Fluorite, Apatite, Microcline, Quartz, Topaz, Corundum All samples are pure crystalline forms to ensure accurate test results. You can also perform other physical properties tests with the included materials. If you need custom order with different sizes design,