Chris conducted an investigation to find whether the size of a rock affects the dimensions of the impact crater created. he found that the larger the rock that was dropped into the soft surface, the larger the formation created identify the following from the scenario
independent variable:
dependent variable: ​

Which flexible structure that supports the nerve cord and led to the backbone

Rotenone is an insecticide that is toxic

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.