glass sphere
WK 5640
Regular price $12.50The glass ball is hollow and when partly or wholly filled with water, becomes a magnifying glass. Reductions in image sizes are created if held under water.
Recommended for 9+ yrs. Particularly suited to the study of light and optics in Grades 6 & 7.
Instructions, explanations, and suggested experiments in English and French.
Winner of the german Spiel Gut award.
6.5 x 6.5 x 4.5 cm. Weight 41 grams.
Made in Germany.
mirror tube
WK 5520
Regular price $9.50 Sale price $8.00 Save 16%The hard cardboard tube with the help of the two flexible mirrors, one rolled into the interior of the tube, and one bent around the outside of the tube, leads to many experiments in reflection. The resulting patterns and views are beautiful and surprising and can lead to many further independent experiments.
Booklet with excellent quality set-ups and suggestions for experiments and open-ended questions, in german, english, and french language.
Recommended for 8 years and up. Particularly suited to the study of light and optics in Grade 6 and 7.
Winner of the German 'Spiel Gut' award.
Comes in a tube 21 cm long x 6.3 cm diameter, overall weight 95 g.
Made in Germany.
mirror ball
WK 5680
Regular price $10.00A lot of fun. Not only at Christmas time!
Too bad that you only have it at Christmas bringing out the Christmas tree balls... Actually, you should always have them at hand, because a mirror ball is great fun to experiment with! Try it, even if just the Easter bunny should be on the way.
Attention! Your mirror ball is very fragile, because it is thin blown mirror glass. Be very careful not to let it drop on the floor!
Glass mirrors give multiple reflections much better again than metal mirrors or plastic, hence the choice of materials.
Recommended for 8+ yrs. Particularly suited to the study of light and optics in Grades 6 & 7.
Instructions, explanations, and suggested experiments in English and French.
Winner of the German Spiel Gut award.
8 x 8 x 8 cm. Weight 52 grams.
Made in Germany.