A descriptive investigation usually starts with . A. making a hypothesis B. collecting observations and data C. deciding what information to collect D. seeing what conclusion the data supports

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

What reaction is taking place? 02 + c3h8 = h20 + co2

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball