This thick-walled Bomex glass boiling flask is perfect for vigorous heating of liquids in the classroom setting. It can hold up to 250ml of liquid. The bottom is rounded, which means it will not sit flat on a table, and thus requires a distillation stand. The flask also features a tooled lip. Stopper size for the flask is No. 6. Excellent for chemical experiments and lab exercises in the classroom setting, or for demonstration purposes for a science fair project.
The large realistic model has removable organs that can be studied and set back into the correct position.
An ancient toy featuring optical illusion and hands-on fun that never grows old!
Experience this sphere powered by the sun!
This great rock tumbling kit comes with everything you need to polish stones and gems!
Create beautiful art with this amazing sun paper!
The Duncan Phoenix Diabolo features a stable, hard rubber shell that retains its shape.