Prior knowledge Questions (Do these BEFORE using the Gizmo.)

1. The image shows a single litter of kittens. How are they
similar to one another?

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.