Science First™ Starlab™ Holographic Diffraction Grating Sheet
This specially developed, high-efficiency diffraction grating is 100 times more efficient than acetate gratings.
Trippensee™ Chain-Driven Illuminated Planetarium
Model sun shines and casts shadows just like the real thing.
29-Series Pop Beads
Create models of DNA strand, DNA replication, RNA conversion, cell organelles, ribosomes, mitochondria and a nucleus.
Project Star Spectroscope
Encourage hands-on exploration of light spectra with this durable, hand-held spectroscope.
Lenz's Law Spinning Disk
Free-spinning disk slows to a stop as neodymium magnet nears the outer edge.
Science First™ Mitosis/Meiosis Cell Model
Teach mitosis, meiosis, cellular division, genetic inheritance and more with this colorful set of snap-together plastic pieces.
Trippensee™ Illuminated Planetarium, Motorized
Completely automated model includes simulated and synchronized orbits of the moon, Earth, and Venus.