Lab Safety
Why do we wear safety equipment in the science lab?
Because we do experiments with a lot of different chemicals that could harm our skin/clothing
What is this piece of equipment? (see Miss Daly's computer for image)
Beaker
What is a independent variable?
What the experimenter is changing
What is an hypothesis?
A prediction or guess about what will happen in the experiment
What are the 3 main states of matter?
Solids, liquids and gases
Name 3 important rules to follow in a Science lab
- Do not run
- Listen to and follow instructions
- Dress for the lab
- Don't drink from the taps in the lab
- No eating in the lab
- Do not taste or sniff chemicals
What is this piece of equipment? (see Miss Daly's computer for image)
Test tube
What is being measured
What is a method?
The steps you do when conducting your experiment
What is the 4th state of matter?
Plasma
Name 3 unsafe things from this image (see Miss Daly's computer for the image)
- Rick is smelling the substance / not wafting
- No one has a lab coat on
- No one has safety glasses on
- Andrew is drinking from a flask
- Chemical in the air
Base, gas tube, collar, air hole, barrel
What is a controlled variable?
What is staying the same
What are 3 important thing to remember when doing a Scientific drawing?
- Labels - label each piece of equipment with a straight (ruled) line and no arrow heads
- Open tops - items such as breakers and test tubes should have an open top to show that it can be fille-
- No colouring in - no shading, just simple lines
- Size matters - approx 10cm by 10cm in size
- Accuracy - objects that are touching each other should be shown/objects shouldn’t be “floating”
What is the change from a solid to a liquid called?
Melting
Write the different parts of a practical report in order
Title, aim, hypothesis, materials, method, results, graph, discussion & conclusion