Bath-time science

Cups, funnels and a sponge in the tub.

Why it works

Bath time becomes physics.

Never leave a child alone in the bath.

Ages 1–3 yrs

$19.99 on habausa.com, checked Oct 20, 2026

Nesting cups starring the Rainbow Fish book. Stack, nest, scoop in the bath, then read the story.

Honest drawback: Cardboard-type nesting cubes don't love water, so check the material before bath use.

Ages 6 mo to 3 yrs

$17.95 on weegallery.com, checked Oct 20, 2026

High-contrast art that babies can actually see, in a soft book that survives drool and bathwater.

Honest drawback: It's a baby book, so the window is short.