This is a prediction or educated guess that can be tested through an experiment
What is a hypothesis?
This is why we perform scientific experiments
To gain knowledge
You have decided to test different brands or microwave popcorn to see which brand give you the most popped corn. What is the dependent variable?
the amount of corn popped
After you have done an experiment once, this is what you can do to make your results more reliable.
Conduct more trials.
This is why the control group is important.
What is it gives us something to compare our results against.
3 lima bean plants are tested to see how air temperature affects their growth. They all receive the same amount of sunlight and water each day. Each plant is placed in a different room, with each room at a different temperature. What is the independent variable?
the temperature of the room
This is why scientists publish the findings of their research/experiments?
So their findings can be analyzed and debated by other scientists.
This is how many independent variables a scientific experiment should have
1
Jimmy made a procedure where he tested out Newton's Law of Motion. He confirmed that the less friction that an object has, the farther it will travel. What step of the scientific method is this?
The "form a conclusion" step
Humayra goes to the library to plan out the steps and procedures for her experiment. What step of the scientific method is this?
The "design and create an experiment" step.
These are the variables that we keep the same to make sure that the test is fair.
What is the controlled variables?
This is the role of scientific debate in the scientific community
It helps us confirm our scientific knowledge
What are the 5 steps of the scientific method?
What is: Ask a question; form a hypothesis; design/conduct an experiment; record/analyze data; write a conclusion