Explore crystal growth with this hands on investigation for grades 6,7, and 8th. Great for teaching journal writing. NGSS aligned for Structures and Properties of Matter. Students will use the scientific method to answer the question: Does the type of water affect the mass of borax crystals created?
Included in the 15 page download:
-Teacher background information
-NGSS Structure and Properties of Matter Alignment
-NGSS Science and Engineering Practices
-6 Page Student Investigation Journal
Students will test to see if different waters affect crystal growth. Students will create a supersaturated solution. They will discover that distilled water is a pure substance and other types of water may not be. In the investigation the students will create a hypothesis. They will record data, calculate the mean, and graph. Students will be guided on how to write a summary and conclusion.
Teachers will love the step by step directions and journal layout. Students will enjoy seeing the crystals form. This is a great activity for science fairs, classrooms, clubs, or science camps. I used this to help my students prepare for the You Be the Chemist Challenge
This investigation is also available for different grade levels. The 4th/5th grade investigation tests different waters, but students perform two trials. The 2nd/3rd grade version includes word boxes and more guidance. 2nd/3rd graders test 3 waters and only one trial. You can purchase them individually or the bundle for a discount. Great when teaching multiple grade levels at once.
Borax Crystal Lab: Investigate the Type of Water on Crystal Growth Grade 2/3
Borax Crystal Lab: Investigate the Type of Water on Crystal Growth Grade 4/5
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