Let op de levertijd van de artikelen op deze pagina, de meeste kits zijn nieuw en worden bij de fabrikant besteld.
Study the action and nature of enzymes as catalysts while performing five experiments. Using experimental controls and variables, students observe the action of amylase on starch, invertase on sucrose, and pepsin on protein. Examine the rate of enzyme-catalyzed reactions and use changes in solution color and pH as indicators of chemical change.
Learn the fundamentals of liquid-liquid extraction in a fun and engaging way. Extract caffeine from tea, calculate the efficiency of the extraction and compare the concentration of caffeine in tea with the concentration of caffeine in a variety of beverages. Materials are sufficient for 30 students .
Let op: inclusief Hazmat export kosten uit USA (100 Dollar),
Kit includes: balloons, yellow ring, hex nuts, plastic bottle, washers, ball bearings and marbles, chenille stem, popsicle stick, salt, nails, block of wood, torque machine, rattleback, printed cards, instructions and storage back.
With this high-quality crystal-growing kit you will conduct chemical experiments to grow your own Aquamarine crystal, glow-in-the-dark Quartz Cluster, and a Crystal Snow Tree. Learn the science behind the dazzling creations and see how crystals form from certain solutions. Display them in a collection and show them to your friends!
Explore and discover the growth of Aragonite crystals with this experiment kit that is sure to amaze your budding Geologist!
Aragonite is a common crystal form of calcium carbonate formed from biological processes, including precipitation from marine and freshwater environments. It can form on mollusk shells (some mollusks have shells composed entirely of aragonite!), as well as in caves, such as Carlsbad Caverns, where it takes the form of stalactites.
However, you can create this crystalline formation easily at home with this interactive kit! Simply add vinegar to the cavities in the supplied container and observe the crystals as they grow! Comes complete with instructions, alternate experiments, and study questions with answers.
This experiment kit includes everything you need to grow clear, pristine pure sucrose crystals you can eat.
Watch rock candy crystals grow to full size in 7 days!
This kit includes everything you need to grow your own beautiful crystal in three easy steps. Once fully grown, you can display it on an included pedestal.
Please note that these come in both green and blue colors, depending on our current stock.
Kit includes: giant test tube rack, five giant test tubes, baking soda, citric acid, pH chart,colored paper, pH indicator powder, measuring cup, scoop, pipettes, safety goggles, instructions and storage bag.