"micro tube racks"

The Student Coin and Feather Tube shows the two items in a vacuum, falling at the same rate.

With the Resonance Apparatus, students investigate the effect of frequency on wavelength.

Used to investigate wavelength in air.

The movement of liquid currents due to differences in temperature is demonstrated by introducing dye into the water in the tube. One corner of the tube is heated and the movement of the dye clearly establishes the currents. The rectangular shaped tube measures 15×21 cm and has an opening at the top.

Study the motion and behavior of gas molecules with this intriguing demonstration. An electric motor, running at 4 to 12 V DC, vibrates a small platform inside a transparent tube. This platform then violently vibrates the many small stainless steel balls inside the tube.

Pre-calibrated test tubes and labware give fast, accurate results in the classroom or in the lab.

Precalibrated test tubes and labware give fast, accurate results on-site, in the classroom, or in the lab.

Precalibrated test tubes and labware give fast, accurate results on-site, in the classroom, or in the lab.

Pre-calibrated test tubes and labware give fast, accurate results in the classroom or in the lab. 

Precalibrated test tubes and labware give fast, accurate results on-site, in the classroom, or in the lab.