You'll come out smelling like a rose (or a coffee bean, lemon, or other fragrance) with this easy to use kit. Students extract the essential oils from...
This chemical test kit measures six parameters common in water quality testing: alkalinity, chloride, hardness, iron, pH, and sulfite. This kit is equ...
This unique astronomical device shows which stars are visible at any hour, day or month, thousands of years in the past, the present and thousands of ...
This chemical test kit for the determination of six parameters commonly monitored for aquaculture testing: alkalinity, carbon dioxide, hardness, disso...
Now your students can hold the solar system in their hands and get a real sense of how far away the planets are and how big they are in relation to on...
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