Anything that causes some change in an organism

How do you write a hypothesis

An object is lifted off a table by use of a spring scale. What two forces are acting on the load a. Weight and friction b. Drag force and friction c. Gravity and the force applied by the scale d. The force of the scale and the force of the block.

What is the definition of an air mass thunderstorm

A hummingbird is hovering motionless beside a flower. The blur of its wings shows that they are rapidly beating up and down. If the air pushes upward on the bird with a force of 0.

What is the potential energy of a 2kg potted plant that is on a 2 meter high plant stand?

Acceleration increases over time once a force is applied to the object. Given a force of 10.0 Newtons, which mass will have the greatest acceleration?

The transfer of energy between two objects by electromagnetic waves is called

What is the unit of k (spring constant) in SI system?

The teacher prepares 2.50 liters (L) of a salt solution for a class experiment. How many quarts (qt) are in 2.50 L? (1 quart = 0.943 liters)

What is a scavenger give some examples