Animal Locomotion
Animal Locomotion is how animals move from one place to another.
A tray holds three cups of liquid: thin water, thick honey, and cooking oil. Drop a marble into each one. It sinks fast in water, slow in honey, and at its own pace in oil. Animals move the same way — body shape must match what they move through.
Explaining animal locomotion by grade level
Put a mealworm on a smooth table, then on rough cloth. It moves in a new way on each one. The bumps and grooves change how fast it can go. The surface under its body shapes the way it moves.
Projects that explore animal locomotion
The surface under a mealworm's body changes how far it travels. You test several materials — sandpaper, cloth, paper, wood, and aluminum foil — by placing a mealworm in the center of each and timing it for two minutes. Each time it changes direction, mark a dot; after two minutes, connect the dots and measure the total distance. Test ten mealworms on each surface, then calculate the average. Comparing the averages shows which textures help mealworms move the farthest and hints at how a mealworm's body grips certain surfaces.
A physical barrier reveals differences in how animals move to reach a goal. You time roosters and hens from two age groups — one-month-old and six-month-old birds — as they travel four meters from their cage to a food tray. On the first day the path is clear; on the second, a three-meter log stands between the cage and the tray. Without the log, roosters and hens arrive at nearly the same time. With it in place, roosters reach the food noticeably faster than hens, showing how obstacles expose differences in movement.