Grow a marvelous crystal garden with these fast-growing crystals. The centers of four flower cards bloom into delicate crystal structures in just a few hours. You can practically see the crystals form before your eyes on the branches of filter-paper trees. Learn about how and why crystals form, and experiment with different colored flowers.
Excellent reference collections and a valuable aid in identifying and comparing common and rare rocks and minerals. These mounted collections display common minerals and igneous, sedimentary and metamorphic rocks. Specimens are 1/2"-1". Rocks and Minerals Study Guide included. Grades 5-12. Ages 10-18.
A sensational collection that reveals the varied geological specimens found in the United States. Collection includes specimens from each of the 50 States. The rock, mineral or fossil selected to represent that state is individually "keyed" for identification. The key also includes a useful fact and a geologic feature for each individual state. Specimen size 1" x 1" x 1". Grades 3-12. Ages 8-18.
A sensational collection that reveals the varied geological specimens found in the United States. Collection includes specimens from each of the 50 States. The rock, mineral or fossil selected to represent that state is individually "keyed" for identification. The key also includes a useful fact and a geologic feature for each individual state. Specimen size 1" x 1" x 1". Grades 3-12. Ages 8-18.
Ideal field test kit for performing 4 important experiments on water pollution. Test water samples for dissolved oxygen content, chlorides, phosphates, and water hardness. This kit provides all the apparatus and materials necessary for performing each test several times. Comes complete with instruction booklet.
In this step-by-step classroom project students examine and identify individual rock specimens. As each rock specimen is examined and identified, students progress toward the completion of their own rock reference charts. The Teacher's reference chart uses illustrations and actual specimens for students to consult as they identify unlabeled rock specimens. For grades 6-12.
This chart has illustrations and actual specimens for students to consult as they identify unlabeled rock specimens. For grades 6-12. 23 1/2" x 15 1/5".
For use with 12046 What Rock Is It? classroom project.
This 24" inflatable writable globe has a white background with outlined countries. The ball may be used over and over again with a wet erase marker (not included) to test your students geography skills.