Science Safety
Always read and follow all ___________________________ before beginning a lab.
instructions/directions
The first step of the scientific method is to ask a ________________________.
question
DOUBLE
The independent variable is the factor that is ________.
changed or tested
A line graph is used to shows ___________.
changes over time
In the Boat Challenge, the boat had to float for __________ seconds.
20
Never eat or _____________________ during a lab because chemicals can be dangerous.
drink
A __________________________ is an educated guess that can be tested.
hypothesis
The dependent variable is what you _______.
measure
A bar graph is used to _______ different groups.
compare
Name a constraint from the Build a Boat Challenge.
Answers may vary.
If glass breaks or something spills, tell the ________________________ right away.
teacher/instructor
DOUBLE
The steps you follow to test your hypothesis are called the _______________________.
The _____________________ are factors that stay the same throughout the experiment.
constants
A pie chart shows __________ of a whole.
percentages
Constraints are the ___________ such as materials, time, or cost.
You should always wear ______________________ to protect your eyes during experiments.
goggles
After testing, scientists record and ______________ their data.
analyze
Keeping all other conditions the same helps make the test ______________.
fair
Every graph needs a title, labels, and an appropriate ________________.
scale
Procedures should be exact enough so someone else can __________________the experiment and get the same or similar results.
repeat
The most important rule in the science lab is to follow _______________________ at all times.
directions
A good experiment includes a control group for ___________.
comparison
The variable you test or change is always shown on the _________________________ axis of a graph.
x-axis
The ________ line on a graph is called the x-axis.
horizontal
Answers may vary.