When a cube of ice melts, how can you confirm that the mass has been conserved? A) Calculating the heat required to melt the ice

B) Adding a catalyst to the reaction

C) Observing how much of the ice is required in order to reach a certain volume of water

D) Measuring the mass of the ice cube, then measuring the mass of the now melted water

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

How are calculation for velocity and speed different

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.