It will float in water; ping pong ball, oil, cork

Water, soil, sunlight, rocks, temperature, rain, sand, etc

Dependent

They return nutrients to the soil

Independent

The mole has shovel like hands used for digging in the soil. It can stay underground and hide from predators.

a living organism such as a plant, an animal, a fungus, or a bacterium.

nonliving factors of the environment, including water, rocks, light, and temperature

Independent=height of ramp, mass of car, track surface; Dependent=distance traveled

The roots grow in the soil pulling nutrients from it; the roots soak up water and deliver it to the plants stem and leaves

They breakdown dead plants and animals to return nutrients to the soil.

A predator in an animal that hunts another animal for food, and the prey animal is the hunted animal. Birds eat worms, cats eat mice, lions eat antelopes

No. Their role is about where they live and WHAT THEY DO.