1. When someone throws an object in the air, what makes the object fall toward Earth?
2. When you have a baseball catch, what causes the forward motion of the ball?
3. Does a satellite require fuel once it is in orbit?
4. What is the force that causes objects to move in circles?
5. If Earth’s gravity could be turned off, what would happen to satellites that are currently in orbit? Explain your reasoning

Rosa records the distance that a toy car rolls and the time it takes to cover the distance. what scientific practice is this? collecting data asking a question providing explanations communicating results

The “death throes” of stars are amongst the most complex phenomena in all of astronomy, and the “corpses” of stars amongst the most energetic and exotic objects in existence. beginning at the end of the core helium fusion stage in a star’s life, describe in detail the post-main sequence development of both (a) a 1.0 solar mass star, and (b) a 25.0 solar mass star. in what significant ways do they differ? what role does each of these types of stars play in the "star-gas-star" cycle and the evolution of chemical elements in our galaxy?

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.