Scientists always prove or disprove their explanations by?

How do meteorites differ from meteors and meteoroids?

What is the main force that causes a star to turn into a black hole? Temperature Gravity Pressure Nuclear explosions.

If a car moves with an average speed of 60 km/hr for an hour, it will travel a distance of 60 km. How far will it travel if it continues this average rate for 4 hrs?

If the force applied to an object increases, the acceleration will?

A passenger in a car is holding an open water bottle when the car stops suddenly. Why does the water in the bottle splash out when the car stops? It is in static equilibrium. It has less friction. It has inertia. It loses gravity when in motion.

We traveled all the way across the U. S. In some states, it rained; in others, it was hot and dry. But, the West Coast beaches were the best! What climate zone is being described? tropical temperate polar subtropical

Imagine two starts are exactly the same size, but one of the stars to greater mass than the other. which star will burn out all of its fuel first

How many eclipses normally occur each year? a. 2 b. 5 c. 7 d. 4

At what distance from equilibrium is the energy of a sho half kinetic and half potential?

Why can you not measure the volume of water in the measuring cylinder accurately unless you look straight at the scale?