Why do North and South Pole have different winter times? The two poles have different location.
North Pole is found in the Western Hemisphere.
The tilt of the Earth towards the Sun changes throughout the year.
North Pole is found in the Northern Hemisphere.

If the mass of the products measured 120g what would the mass of the reactants a. 30g b. 60g c. 120g d. 240g

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size