Break open these real geodes to discover the incredible crystal formations hidden inside!
Beautiful 24" x 36" laminated poster shows over 100 of the most colorful butterfly species!
Using the same system as Luke Howard used in 1803, students can classify clouds as cumulus, cirrus, or stratus.
Each set includes 8 specimens and a descriptive color-coded reference sheet.
Duplicate the conditions that produce clouds with this easy-to-use device.
Clouds Close Up (Set of 4)
Your students will learn how antimony is used in semiconductors, fluorite in toothpaste, silica in water filtration, zinc in medicine, as well as many other common uses of these important natural resources.
Highly detailed, full color photos of common materials explore their applications to our daily lives.
Six contoured foam layers motivate students to build and map mountain formations as well as simulate below sea level with the perforated box lid.
Demonstrate how contours indicate levels of elevation on maps with this clever model.
Get to the core of the Earth and Sun with these soft foam models!
Simulate the movement of warm and cold water between polar and equatorial regions using this durable, clear acrylic model.
© 2014 Delta Education, LLC. | Request a Quote