Caty Asked: A scientist conducted an experiment to investigate the effect of UV radiation. Why is it important f

another scientist to conduct the same scientific investigation independently?

to prove that the hypothesis is true and ready to be considered a scientific law
to ensure the popularity of the results so they will be accepted by the scientific community
to verify the data to make the results of the investigation stronger and more reliable
to keep the scientific community competitive and motivated to continue finding new facts

2.Which of the following is true of a scientific theory?

It attempts to explain why things happen the way they do.
It never changes once it is discovered.
It is tested over time until it becomes a scientific law.
It only describes what happens, not why it happens.

3. Which of the following is an example of a scientific theory?

Scientists use three mathematical laws to predict the movement of planets in the solar system.
Scientists observe the effect of climate changes on plants and primary producers living in the ocean.
Scientists use the relationship between the DNA of various species to estimate how long ago they diverged evolutionarily from each other.
Scientists agree that there is an amount of attraction between any two objects, called gravity, and can describe the attraction in mathematical terms.

4. Which of the following is not an example of kinetic energy?

sound
chemical energy
radiant energy
heat

5.Which of the following best represents potential energy being converted to kinetic energy?

A man jogs around the block and stops to drink an energy drink.
A drawn bow is released, causing an arrow to fly across the field.
A child turns a crank to pull a bucket up from the bottom of a well.
A tree is struck by lightning, and then it is set on fire.

Can anyone please help me with these questions?