
We're talking a major improvement on bills, catalogs, and credit card offers on the porch floor. We're talking an actual transparent tadpole in the mailbox, ready to grow up in your home, like a puppy but without the chewed furniture. We'll send you the kit, with a 4-1/2" square x 3-1/2" tall acrylic box with a vented lid, spoon, 2-oz bag of food, 1-1/2-oz bag of sand, 48pp instruction booklet, and a little plastic plant for verisimilitude. You mail the enclosed postcard and the Grow-A-Frog people send you a gen-yoo-ine, actual live tadpole or froglet (depending upon the season) with see-through skin so you can watch its little inner organs grow. Much better than television.
![]() |
93024 GROW-A-FROG |
The budding home scientist and horticulturist will both delight in the ease with which this self contained soil test kit brings discovery. The kit measures not only ph., but also Nitrogen, Phosphate and Potash content and contains material for 40 tests. Since these are the essential ingredients affecting plant nutrition, we see a science project in the making: experimental plant growth in soils with different amounts of acidity and/or nutrients. From Luster Leaf(tm), the kit is entirely self contained and includes complete instructions for use and explanations. Be careful, please, the kit does have chemicals and should not be used by young children without supervision.
![]() |
88690 MULTI SOIL TEST KIT |
A DIY bat habitat. Build your own wooden country house for the world's finest skeeter-eaters. This 6-piece kit is unfinished pine and will result in a bat house that measures 17-1/2" tall x 5-1/2" wide x approx 4-1/2" deep. Comes with nails; you add wood glue and a hammer (and the bats) for this kid's first project from Woodcraft®.
![]() |
89626 BAT HOUSE KIT |
This is one slick motorized solar system and planetarium from Educational Insights®. Make assembling it an educational exercise. Demonstrate how the planets circle the sun. The 4" dia sun is yellow plastic, lit with a krypton bulb. The planets are colored, reasonably proportional given their actual sizes, and marked with their symbols. They ride on black metal arms that disappear in the dark. The helpful instruction manual suggests activities, and includes a heliocentric longitude chart. Use it with the degree markings on the black-plastic base to show the positions of the planets on different dates. Replace the top half of the sun with the clear dome imprinted with labeled Northern-hemisphere constellations, and project them onto the walls and ceiling of your darkened classroom. About 9" high, with Pluto extending 15" from the center, and the other planets hanging out in their respective order. Comes with an AC adapter, but not with the (4) "C" batteries it needs. For grades 3 and up, and not for kids under three years of age. (Do you want to have to tell an E.R. nurse he ate Uranus?)
![]() |
91930 SOLAR SYSTEM |
Makes us nuts, sitting around waiting fifty, sixty thousand years for the fossils to harden. So we got this clear plastic fossil mold from Roylco®, 8-1/2" x 10-1/2" OA, to make replicas of ammonite, chirostenotes' claw, trilobite, king crab and gryodus. You can create detailed plaster-of-Paris models 3" to 3-1/2" dia, but we'd give the kids a break and use chocolate or Jell-O", because nothing makes paleontology more fun than eating the fossil record.
![]() |
92652 FOSSIL MOLDS |
Thames & Kosmos® offers Power House, an extraordinary introduction to regenerative energy sources and sustainable living. Young scientists age 12 and up use the components of the kit to build a model house and (20) other energy-related devices, learning about energy from the sun, wind, plants, and electrochemical reactions. Along the way, they cook a potato with sunlight, make fresh water from salt water, galvanize a nail and split water into hydrogen and oxygen, and much more. The 96-page, full-color manual integrates experiments and activities with an engaging story line. The kit carries The National Parenting Center Seal of Approval, and is the winner of a Preferred Choice Award from Creative Child Magazine. Very, very nice.
![]() |
92705 POWER HOUSE |
Triops: way cooler, bigger and more active than sea monkeys. They're dinosaur shrimp, leftovers from some 200 million years ago. Don't eat them; just grow them and enjoy this bizarre & ancient display of nature! You get a kidney-shaped tank 2-3/8" tall x 8-1/2"x 5-3/4", a very informative instruction booklet, and a packet full of triops eggs and food. Add the eggs to water and watch them go; they'll hatch in a day and reach 1" to 2" or more in a few weeks. Really easy to do, and really cool too.
![]() |
91047 TRIOPS KIT |
Aka Club Moss, Aka Dinosaur Plant. This innocent little plant will unfold into full lush green foliage when placed in a small bowl of water over night. If removed from the water it will roll up into a dead looking little brown ball. And it will perform the act over and over again. Just as it has ever since dinos roamed the earth. Fun for all!
![]() |
88832 DINOSAUR PLANT |
Don't let them grow up not knowing a horse chestnut from buckeye. This excellent, professional-level tree identification kit includes (13) preserved sample leaf specimens in sealable plastic sleeves; a 62pp soft-cover, pocket-sized book ("Tree Finder") to help identify virtually every tree in North America; and a 16pp pamphlet for leaf identification with an answer key for the samples.
![]() |
93205 TREE ID KIT |
Get ready to make a good home for a praying mantis, your own little carnivorous pest control system. The kit includes a nylon mesh/clear vinyl spring-steel frame habitat 11-1/2" x 9-3/4" x 11", with a zippered lid; a pair of 4" long tweezers with padded jaws; a plastic magnifier; a small pipet; and a 7pp activity book. Use the enclosed coupon to order the live mantis egg case for $7, a 50% discount because you bought the mantis mansion. You can order food (for the mantis, not yourself) from the same people. Note: Plan ahead. The mantis eggs are only available Dec-June.
![]() |
93067 PRAYING MANTIS |
Decidedly clever little gizmo, reminiscent of our ever popular Tornado Tube. It consists of a plastic sleeve into which one screws two empty 2-liter soda bottles. Inserted into this connecting tube are two clear plastic "straws", one extending toward the bottom of each bottle. Fill one bottle 3/4 full of water, colored if you like, invert the duo, and watch water spew from the top end of the top "straw". It's all because of the vacuum created as water drains from one bottle to the other, and is a good physics demonstration item. But it looks as though the water defies gravity. Amaze everyone at your next party! Highly recommended for anyone who enjoys a "Tornado Tube".
![]() |
89034 FOUNTAIN CONNECTION |
Click a phrase to shop for products associated with that phrase (AKA "Tag"). More popular tags appear bigger. Learn more »