Drake built a circuit with a battery, a buzzer, and a switch. he built the circuit to sound a warning whenever a person opened a car door while the key was still in the ignition. the circuit transfers to the buzzer, and the buzzer transforms it to . the source of the energy in the circuit is the battery. the battery creates an electric that moves the electrons through the circuit.

The variables for this experiment include mass, volume and the materials in the various balls, as well as their densities. in part iii, you will be investigating the questionable baseball. use the drop-down menus to complete the sentences and identify the independent and dependent variables. in part iii, the independent variable, the one that is intentionally manipulated, is . in part iii, the dependent variable, the one that you measure the response in, is

Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?

The air that we breath is made mostly of which gaseous molecule