When you were a baby, you didn't have any teeth at all. Then as you grew, your teeth started to come in. First one, then two--and finally, twenty teeth in all But you won't keep these teeth forever. First one, then two, will wiggle loose. Maybe you've lost some of...
Introduces teeth, describing how many we have at various stages of life, why they fall out, and what they do.
Introduces teeth, describing how many we have at various stages of life, why they fall out, and what they do.
Let's-Read-and-Find-Out Science Stage 1.