8/30 Safety, Tool & Measurements Flashcards
What should you do before starting an experiment
Read the instructions carefully
Things not to do in the lab: 7 things
No running
No disposing materials incorrectly
No tasting substances
Not wafting
No messy area
Not wearing goggles when needed
Not leaving long hair down
When in doubt _______________
ask the teacher
Goggles protect our _______
eyes
Mass is the amount of matter inside an object and it would stay the same even in ______ unlike your ______
Space
weight
Which has more mass? beach ball or bowling ball
Bowling ball
What tool would you use to separate mixtures with materials of different sizes
Sieve
What tool measures volume (ml)?
Graduated cylinder
Another word for controlled variables?
constant
_________ is the amount of space it takes up.
Volume
A student is using a spring scale to pull a 50g block across a desk. What is the investigation question? Hint: what is being measured
What is the force of Newtons (N) need to pull the block across the desk
A triple beam balance measures ________
the mass, or the amount of matter, in an object
Steps of scientific method in correct order (6 steps)
1) identify problem
2) research
3) hypothesis
4) experiment
5) analyze data
6)conclusion
Independent variable is what we are ______ changing.
purposedly
The dependent variable is what we are ______. It is the outcome or thing being effect by the changes we made (independent)
measuring
