PLS ANSWER FAST WILL GIVE Explain to me in YOUR own words, how convection currents create a cycle? In other words, tell me how heat and cooling create a cycle.

When a fluid is heated, it becomes less dense and rises. That fluid eventually cools and gets less dense, sinking. If the fluid is heated from the bottom, it will get heated again, creating a cycle.

Explanation:

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.