When the disk of the moon mask the the disk of the sun,it creates a (solar) eclipse.
Answer:
What do you mean Every force has a what?
Answer:
Independent variable: Colour of the container
Dependent variables: The water amount and the room temperature
3 Constants: Amount of water, location of the containers and the container size.
Hypothesis: I think that the black container will heat up the water the fastest, as the colour black absorbs heat.
Hope it helps! :)