Experimenting: Factors that Affect Sponge Egg Hatching

Catalog #STO-124

Design and conduct a controlled experiment.

Time To Complete Time to complete: Four 40-minute periods
  • Conduct a controlled experiment to determine the effect of temperature on the hatching of sponge eggs.
  • Design and conduct your own controlled experiment to test the claim that using "HatchFast" speeds up sponge egg hatching.
Teacher Guide Know Before You Buy! Download Teacher Guide

Limit 1 free sample per customer

Quantity Price
1 - 9$14.70 ea.
10 - 24$13.97 ea.
25 - 1000$13.23 ea.

Each assembled kit contains:

  • Student instructions
  • 18 “sponge eggs” (gel capsules containing sponge “eggs”)
  • 3 labeled plastic cups
  • 4 stirrers
  • 1 Celsius thermometer
  • 1 bag of HatchFast
  • 1 small spoon

Also required: Water at 25, 35, and 45 degrees Celsius, clock with a second hand, safety goggles

Buy Unassembled and Save!

Refill Your Kit

Experimenting: Factors that Affect Sponge Egg Hatching – Pack of 10 Unassembled Kits

Catalog # STO-124U

Unassembled packs contain materials for 10 kits.

  • All supplies, lab materials, and printed labels
  • Student instructions copy master
  • Easy to follow instructions for kit assembly
Quantity Price
1 - 9$115.50 ea.
10 - 1000$109.73 ea.

Experimenting: Factors that Affect Sponge Egg Hatching – 10 Kit Refill Pack

Catalog # STO-124R

Refill packs contain materials to replace consumable supplies for 10 kits.

Quantity Price
1 - 9$49.35 ea.
10 - 1000$46.88 ea.

Teacher Testimonial

The kits have great information with easy but thought provoking activities. There are many extensions that can be derived from the activity experience.

- High school biology teacher (OK)

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STO-124