What is the difference between a experimental group and a control group?

An experimental group that's purpose is for comparison to the other groups tested. This group does not receive the independent variable.

How many independent variables does an experiment have?

What is an independent variable in an experiment?

Variable that is measured at the end of an experiment; the results (ex: does patient get better?) The dependent variable is always plotted on the Y axis.

Qualitative observations are observations that

What are Quantitative Observations?

What does repetition in science experiments refer to?

What does scientific replication refer to?

What is a scientific theory?

Scientific models are often used to help scientists understand a problem.

Models that you can see ande touch are called __________ models

The experiments dependent variable is also described as

Which section of an experiment sheet tells what the experimenter expected to happen during the experiment?

If an experiment is a controlled experiment, how many variables are intentionally changed?

In an experiment, a sample of granite, limestone, marble, and sandstone each had a constant supply of water running over them for 96 hours. The rocks were then checked for signs of erosion. What was the purpose of this experiment?

A scientist experiments with lab rats in a controlled experiment about how the amount of exercise affects the body mass of lab rats. What is the independent variable of the experiment?

Any condition that can be changed in an experiment is called a variable. Which of these best explains why there should only be one variable changed in an experiment?

Jaden is doing an experiment to find out if plants grow taller when given plain water or sugar water.To make sure his experiment is a fair test, Jaden should

Frances was working on an experiment for science class. She dropped 4 steel balls of different weights from the same height. She noticed that the balls all reached the ground at the same time. Frances is probably doing an experiment on the-

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