This hands-on project enables students to examine and identify individual rock specimens as a study unit in earth science. Each classroom activity project includes: one wood framed reference chart, complete with mounted specimens, 30 student charts (reproductions of the reference chart on heavy card stock), 30 specimens of each rock represented to be studied and glued on each chart during the activity, one test kit, and the Scott Resources' Rocks and Minerals Study Guide. The evidence supporting the theory of Plate Tectonics is shown on this chart. Rock specimens that illustrate the variety of processes related to the Earth's dynamic crust are mounted on this 18" X 24" chart. Grades: 4 - 12.
Introduction to elements, compounds, and mixtures, along with changes that these substances undergo as well as the characteristics of some elements, symbols for elements, and structures that make up atoms. Common mixtures are separated by evaporation and chromatography . New compounds are formed and changes that indicate chemical reactions are observed. Reproducible manual that includes 10 activities/laboratories, vocabulary lists and definitions, and a complete answer key. Experiments include: Classes of Matter, Elements, Symbols for Elements, Atoms, Common Mixtures, Separation by Evaporation, Separation by Chromatography, and more. 24 Students in Groups. Materials needed but NOT included: goggles, tape. Grades 4-9.
Seven different solutions are combined in every possible combination and chemical properties are identified by observing their reaction with other solutions. Chemical reactions include gas production, color changes and formation of recipitates. Students use their information to identify 4 unknown solutions. Contains materials to conduct the experiment twice, safety glasses. For 24 students working in groups of 4. Grades 7-11.
Observe the color and state of matter for 14 different substances. Test liquids for the presence of odor and observe the texture of solids. Test the acidity or alkalinity of liquids. Test the solubility of solids in alcohol and water. All materials included except: water, stirring rod, graduated cylinder, balance, hand lens (optional), safety glasses, test tubes or depression plate for solubility test. Designed for 24 students in groups of 4. Grades 8-11.
Determine the relative effectiveness of various commercial sunscreen lotions under laboratory conditions. Can serve to promote scientific investigation of consumer products. The experiments consist of allowing light energy to act upon a photosensitive chemical agent with the blocking of the light energy dependent upon sunscreen employed. After the exposure the amount of chemical conversion is measured and plotted as a function of the "Sun Protection Factor", SPF. Kit is designed for 24 students working in groups of 4. Grades 6-8.
Refill kit for 09725. Barium Chloride bottle 100ml, Citric Acid 1/4 oz, Dextrose 30cc, Gelatin 30cc, Hydrogen Peroxide 3% bottle 2oz, Ethanol Denatured Alcohol 20, Potassium Iodide 1% solution 100ml, Potassium Thiocyanate 100ml, Sudan IV 2oz, Sulfuric Acid 10% solution 100ml, salad oil 2oz, Benedicts solution 100ml, Iodine .1 normal 4oz, Biuret solution 100ml, Starch Acetic Acid solution 100ml, chemical absorbent pad.
Today's emphasis on the artificial and natural ingredients of the foods that we eat has placed new emphasis on the chemical composition of that food. Examine the chemical, nature of many familiar food products. Experiments in this module: Presence of sugars, starches, fats and proteins, fruit discoloration, chemical composition of milk, presence of iodine in salt, calcium propionate in bread and the qualitative test for vitamin C and sulfur dioxide.
The Project Planetarium is ideal for individual study projects. Causes of 2 day and night, seasonal changes, phases of the moon, and planet locations are easily understood. The small planetarium model and solar system chart, 22"x17", may be set to show actual positions of the earth, the moon and planets at any given time. Each set includes planetarium, chart and study guide.
Features all 10 planetary orbits. The motions of the planets, their relative sizes and distances from one another are illustrated in this attractive model. This model enables the student to "see" and "feel" what the Solar System looks like. The student will be able to visualize the physical relationships between the planets and the sun, and realize a better understanding of the various motions of the planets. When used with Ptolemaic System, all the problems of the real and apparent motions become clear. Stainless steel arms. Instruction book, ?Worlds in Motion," is included.
Features all 10 planetary orbits. The motions of the planets, their relative sizes and distances from one another are illustrated in this attractive model. This model enables the student to "see" and "feel" what the Solar System looks like. The student will be able to visualize the physical relationships between the planets and the sun, and realize a better understanding of the various motions of the planets. When used with Ptolemaic System, all the problems of the real and apparent motions become clear. Stainless steel arms. Instruction book, ?Worlds in Motion," is included.
Contains 30 different minerals (5 of each sample) to be used with the taxonomic key contained in the lab manual. Students test for hardness, specific gravity, color, streak, and cleavage. Includes a Mineral Testing Kit which consists of a streak plate, glass plate, hand lens, magnet, acid bottle, nail, penny, and hardness scale. Grades 7-12. Ages 12-18.
Contains 30 different minerals (5 of each sample) to be used with the taxonomic key contained in the lab manual. Students test for hardness, specific gravity, color, streak, and cleavage. Includes a Mineral Testing Kit which consists of a streak plate, glass plate, hand lens, magnet, acid bottle, nail, penny, and hardness scale. Grades 7-12. Ages 12-18.