ph test

Enough Materials for Five Groups Working Simultaneously
Students will learn the importance of this factor in soil and the effect on plant growth and nutrition as they test either their own soil samples or those that come with the kit. Also comes with materials for each group to perform five tests (making a total of 25 tests per kit), a teacher’s manual with lesson plans, and reproducible student procedure/data sheets.

Range: pH 3.8–8.4.