Preparing the Sand-Humus Mixture for 2 Crab Habitats

①Add one 5 lb (2.25 kg) bag plus one cupful of sand to the

habitat. ②Add one 270 ml (9 oz) cup of

humus. Mix evenly.③Add 2 ¼ oz of water to the

sand-humus mixture and mix well.

Preparing the Salt Water

①Fill the 1.9 liter pail ¾ full of water.

②Add a drop of tap water conditioner to the pail.

③Add two pinches of Instant Ocean to the pail.

④Stir the pail and cover it with a lid.

What We Would Like to Know

About Our CrabsIn your science notebooks,

brainstorm a list of things you would like to know about the

crabs in our classroom.