# Constants in Science: Definition & Examples Video

Instructions:

question 1 of 3

### An unchanging variable throughout an experiment is known as a _____.

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Use the provided material to answer questions 1-2.

Jude is doing an experiment to observe how changing the number of coins in a battery tower affects the total voltage. Jude has 10 identical coins. He places one coin on the table, then he places a one inch square of paper-towel that has been soaked in a vinegar mix on top. Jude then places a second coin on top, making a sandwich of coin, paper-towel, coin. Using a voltage meter, he records the voltage. Jude continues to place coin, paper-towel, coin sandwiches on the batter tower, measuring the voltage after each addition.

### 2. The number of coins in the experiment is the:

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The quiz and worksheet helps you address your knowledge of constants in science. Types of variables in experiments are spotlighted on the quiz.

## Quiz & Worksheet Goals

You'll get to assess your knowledge of:

• Why constants are important to a science experiment
• Term for an unchanging variable throughout the experiment
• Examples of constants

## Skills Practiced

• Information recall - access the knowledge you have gained about the types of variables in an experiment
• Reading comprehension - ensure that you draw the most important details from the lesson on constants in science
• Interpreting information - verify that you can read information about why constants are important and interpret it correctly