Prepare your own squashed stained slide and be able to identify the phases of plant mitosis and chromosomal development. Students will be able to prepare, stain and mount slides using specially prepared onion root tips. Kit contains enough material for 15 groups. Teacher’s Manual and Student Study Guide copymasters are included. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: LS1.A; LS1.B Performance Expectations: MS-LS1-1; HS-LS1-1; HS-LS1-4 Cross Cutting Concepts: Scale, Proportion, and Quantity; Systems and System Models; Structure and Function Engineering Practices: Planning and Carrying Out Investigations; Developing and Using Models; Constructing Explanations and Designing Solutions Kit Includes: 1 vial Preserved root tips 2 X 25mL Hydrochloric Acid, 6M 2 X 25mL Toluidine Blue, 1.0% Solution 1 box Microscope Slides 1 box Coverslips 30 Aluminum Dishes 30 Forceps DOT Info: Small quantity exemption 173.3 THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or rail transport only *”Next Generation Science Standards” is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards was involved in the production of, and does not endorse, this product. WARNING: This product can expose you to chemicals including Methanol/Methyl isobutyl ketone, which is known to the State of California to cause cancer and reproductive harm. For more information go to http://www.P65Warnings.ca.gov.