Skill· 7mo–9mo· 2 min

Bath Time Scientist

Parent introduces floating and sinking toys during bath time, creating a simple water experiment to observe baby's curiosity and problem-solving. The agent coaches the parent to notice exploration behaviors, cause-effect understanding, and social engagement during this sensory-rich play.

Start voice activity

Opens a guided voice session in TogetherTime.

What you'll need

Baby in bath tub with appropriate water level and temperature. Have one floating toy (like a rubber duck) and one sinking toy (like a solid plastic animal) within reach. Baby should be alert and comfortable.

How it works

  1. 1~30s

    Start by placing both toys in the water where your child can see them. Let the floating toy bob on the surface and the sinking toy rest on the bottom. Watch your child's face and hands closely. Does they look back and forth between the two toys? Does they reach for either one? Tell me what catches their attention first.

    Watch for: Baby shows active curiosity by visually comparing the floating and sinking toys, reaching, or showing focused attention.

  2. 2~35s

    Now let's play with cause and effect. Push the sinking toy under the water and let it pop back up if it's buoyant, or keep it submerged if it sinks completely. Do this a few times while saying 'Down it goes!' Watch your child's reaction. Does they try to push it down themself? Does they look surprised or delighted when it moves? Tell me what you see.

    Watch for: Baby shows understanding of cause-effect by attempting to repeat an action or anticipating the toy's movement.

  3. 3~40s

    For our last experiment, make it a social game. Hand your child the floating toy and say 'Your turn!' See if they tries to put it in the water themself. Does they look at you for approval or help? Does they splash, laugh, or show enjoyment in this shared activity? Notice how your child engages with you during this playful interaction.

    Watch for: Baby shows social engagement during water play — sharing enjoyment, seeking interaction, or responding to parent's cues.

What this develops

Visual example

Coming soon