If there are 20 Earthworms in a garden that covers 5 square meters, what is the population density of the earthworms?

A. 20 Earthworms

B. 4

C. 100 Earthworms per square meter

D. 4 Earthworms per square meter

Write a 150 word paragraph or two that describes at least three everyday things that exist or occur because of science. Make sure you use examples different from those given in the lesson.

A 40 kg skateboarder runs at a constant velocity of 12 m/s and jumps off a stationary skateboard with a mass of 8 kg. What is the velocity of the skateboard after the jump?

What occurs in a chemical reaction? A. Reactants are formed without chemical bonds being broken B. Reactants are formed from products by the breaking and forming of bonds C. Products are formed without chemical bonds being broken D.

Isaac Newton was an English physicist who lived in the mid 1600s to the early 1700s. Newton stated that all objects are attracted to each other by the force of gravity. James Joule was also an English physicist who lived in the 1800s.

Cells with similar preferences are arranged closer together in the auditory cortex.

A girl scout is pulling her 30 kg wagon of cookies with a force of 60 N to right. Friction pulls back with a force of 15 N left. What is net force on the wagon

10. A bullet is moving at a speed of 367 m/s when it embeds into a lump of moist clay. The bullet penetrates a foe and comes to a stop at a distance of 0.0621m. Determine the acceleration of the bullet while moving into the clay.

What are the units for mass and volume

A car traveling with constant speed travels 150km in 7200s. What is the speed of the car

You observe the moon rising at 6 p. m., around sunset. its phase is