| A | B |
| Rooting | Touch of a baby's cheek automatically turns to suck |
| Egocentric | Think only of themselves |
| Proportion | The size relationship between different parts of the body |
| Colic | A baby being extremely fussy every day. |
| Automatic Reflex | Sneezing and yawning |
| Startle Reflex | Baby is alarmed by a loud noise or a touch to the baby's stomach. |
| Hand-eye-coordination | The ability to move the hands and fingers precisely in relation to what is seen. |
| Failure to Thrive | Condition in which the baby stops eating and weight loss is rapid. |
| Cradle Cap | Extreme dryness and scaling of the scalp. |
| Weaning | Changing from drinking from the bottle or breast to drinking from a cup. |
| Stranger anxiety | fear, usually expressed by crying, of unfamiliar people. |
| Placid Child | easygoing and accepting of surroundings |