Experiments, experimental variables and experimental controls.
You've decided to perform a simple experiment to investigate how a skateboard rolls down a ramp. Take a look at the elements you've decided to use for your experiment.
Learn how to identify types of variables in a simple experiment with bouncing balls.
Part 2 of Controlling Variables: learn how to identify types of variables in a simple experiment with bouncing balls.
Reviews the nature of scientific experiments, including experimental variables and controls.
Come up with questions about a topic and learn new vocabulary words to determine answers using an Ask, Answer, Learn table.