This Concert Pitch or Physics Scale Tuning Fork Set comes in a high-quality wooden box. These equally tempered tuning forks are based upon the A note (440 Hz) above middle C (261.6 Hz). They are useful for teaching the physics of music.
• Includes a striking mallet with 1 soft and 1 hard end
• Includes 1 each of the following frequencies: C – 261.6 (7.25″ L, handle is 1.75″), D – 293.7 (7″ L, handle is 1.75″), E – 329.6 (6.75″ L, handle 1.75″), F – 349.2 (6.5″ L, handle is 1.75″), G – 392 (6.33″ L, handle is 1.75″), A – 440 (6″ L, handle is 1.75″), B – 493.9 (5.75″ L, handle is 1.75″), C – 523.2 (5.5″ long, handle is 1.75″)

Item 7020-60

In Stock

This set of 8 tuning forks comes in a Styrofoam box. The tuning forks are individually constructed of forged steel. Each fork is stamped with the musical scale note sounded by the fork and the frequency in Hz at the base of the tine.
• Chrome-plated
• Includes frequencies: 256, 288, 320, 341.3, 384, 426.6, 480, and 512 Hz
• Plain shank form
• Can also buy tuning forks separately
• Lengths vary

Item 3620-00F

In Stock

These color-coded stacking masses help children see mass or weight relationships at a glance. Each weight is a different color and thickness, so they are easy to understand and manipulate for small hands. They are perfect for use with a wide variety of balances, including Item #5100-00.
Set of 8 plastic weights includes:
• Five (5) green 5 g weights
• Two (2) yellow 10 g weights
• One (1) red 20 g weight

Item 5158-00

In Stock

TUNING FORK SET, 10 PIECE STANDARD WITH MALLET, WOODEN BOX

Item 7020-10

In Stock

This cork borer is used to cut holes in a cork or rubber stopper to insert glass tubing. They are made of plated sharpened brass tubing, with attached handles. The set also includes a steel punch.
The set includes 11 cork borers to make the following hole sizes:

1 – Hole Dia.: 5 mm (0.19″)
2 – Hole Dia.: 6 mm (0.25″)
3 – Hole Dia.: 8 mm (0.31″)
4 – Hole Dia.: 9 mm (0.34″)
5 – Hole Dia.: 10 mm (0.39″)
6 – Hole Dia.: 11 mm (0.44″)
7 – Hole Dia.: 13 mm (0.5″)
8 – Hole Dia.: 15 mm (0.61″)
9 – Hole Dia.: 16 mm (0.63″)
10 – Hole Dia.: 17 mm (0.69″)
11 – Hole Dia.: 19 mm (0.75″)

Item 2093-04

In Stock

Each of these quality slides showcases a starch sample for close inspection under the microscope. They are ideal for life science and biology classrooms.
• Sold in a set of 12
• Includes plastic storage case

Item SP-1200

In Stock

This economy aluminum tuning fork set comes in a wooden storage box. Each fork has a place in the foam lining die-cut for easy storage. These forks are useful to demonstrate the energy and vibration of sound.
• A striking mallet with 1 hard and 1 soft end is included
• Sold in a set of 13
• Includes 1 each of the following frequencies: 100, 128, 256, 288, 320, 341, 384, 426.6, 480, 512, 1024, 2048, 4096 Hz

Item 7020-50

In Stock

BALLS, SOLID, 25MM, SET/14

Item 3484-30

In Stock

METAL CAN SET OF 15 (MAKING DEW KIT)

Item 9446-11

In Stock

This custom slide set is excellent for investigating and comparing tissue and cells from a variety of eukaryotic organisms. The set is suitable for studying life science and biology in the classroom or homeschool.
Set includes 17 prepared slides in a plastic storage case:
• Amoeba Proteus
• Diatoms
• Euglena
• Ascaris mitosis
• Grantia spicules
• Hydra budding
• Leaf c.s. w/veins
• Onion tip root
• Paramecium
• Planarian
• Ranunculus root
• Ranunculus stem
• Spirogyra w/conjugation
• Volvox
• Zea mays root
• Zea mays stem
• Chicken embryo

Item 1550-00

In Stock

Demonstrate the principles of color mixing with this set of 18 clear, colored plastic paddles.
• Comes with a Teacher’s Guide
• 3 packs of 6 colors

Item 9994-18

In Stock

These color-coded stacking masses help children see mass or weight relationships at a glance. Each weight is a different color and thickness, so they are easy to understand and manipulate for small hands. They are perfect for use with a wide variety of balances, including Item #5100-00.
• Sold as a set of 19 weights

Item 5157-00

In Stock

This general slide set is good for teaching life science and biology concepts as well as light microscopy skills. All slides are labeled and packed in a plastic storage case. The set consists of 25 total slides.
Includes:
• Plant mitosis
• Pollen grains w.m.
• Amoeba w.m.
• Yeast cells w.m.
• Green algae spirogyra
• Letter e
• Tape worm t.s.
• Silk fabric w.m.
• Lily leaf v.s
• Skin cells v.s.
• Mammal lung t.s.
• Animal meiosis
• Aves feather w.m.
• Lily stamen t.s.
• Mammal hair w.m.
• Mosquito mouth parts w.m.
• House fly mouth parts w.m.
• Amphibian blood smear (frog blood smear)
• Human blood smear
• Onion cells w.m.
• Hibiscus stem t.s.
• Wool fabric w.m.
• Fish scale w.m.
• Skeletal muscles w.m.
• Monocot stem c.s. (herbaceous stem—young t.s.)

Item 1400-00

In Stock

These high-quality slides feature high contrast staining of tissues from plants, mammals, and humans. They are suitable for life science and biology classes at both the high school and college levels.
Includes 25 slides in a hard, plastic storage case:
• Plant cells (wm)
• Monocot root (cs)
• Monocot stem (cs)
• Dicot root (cs)
• Dicot stem (cs)
• Striated muscle (wm)
• Mammal adrenal gland (cs)
• Nerve cells (smear)
• Human bone marrow (smear)
• Adipose tissue (cs)
• Epithelium columnar (skin)
• Epithelium squamous
• Muscle cardiac
• Mammal pituitary gland (cs)
• Mammal thyroid gland (cs)
• Mammal brain (cs)
• Human cartilage (ts)
• Human blood smear
• Human bone (cs)
• Human skin (vs)
• Human liver (ts)
• Mammal kidney (ts)
• Mammal lung (ts)
• Mammal oesophagus (ts)
• Human ovary (ts)

Item 1450-00

In Stock

These color-coded stacking masses help children see mass or weight relationships at a glance. Each weight is a different color and thickness, so they are easy to understand and manipulate for small hands. They are perfect for use with a wide variety of balances, including Item #5100-00.
Set of 35 plastic weights includes:
• Twenty (20) green 5 g weights
• Ten (10) yellow 10 g weights
• Five (5) red 20 g weight

Item 5160-00

In Stock