Scientific notation is often used to express numbers. when is scientific notation more appropriate than standard notation?
a) for numbers that contain fractions.
b) for very large or very small numbers.
c) for measured values during experiments.
d) for numbers and computations during science class.

What causes temperature extremes in the desert

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Babies with very low or very high birth weight are less likely to survive. observe a graph of the data.