[Vol. 1] Animal talents : How do you hop so high? --
[Vol. 2] Body sounds : What is that rumbly in my tummy? --
[Vol. 3] Gravity : Why don't things fall up? --
[Vol. 4] Rain : Why does it have to rain? --
[Vol. 5] Buoyancy : Does it float? --
[Vol. 6]. Growing : Is my shirt getting smaller --
[Vol. 7] Helpful insects : What good are bugs? --
[Vol. 8] Fog : Why is the day all gray? --
[Vol. 9] Planting : How does your garden grow? --[Vol. 10] Evaporation : Where did the rain puddle go? --
[Vol. 11] Animal camouflage : Who's hiding? --
[Vol. 12] Animal communication : Who said "Whoo"?