Science Safety, lab tools, and Scientific method review

When you are in lab you should NOT

• chew gum

• eat

• drink

• All of the the above

Broken glass should always be cleaned up in what way?

• by a teacher with a broom and dustpan

• by a teacher with her hands

• by a student with a broom and dustpan

• by a student with her hands

When smelling chemicals you should...

• smell directly

• waft it

• let the teacher smell it

• never smell it

what is the first step of the scientific method?

• ask a question

• make an observation

• research

• write a hypothesis

A write what I think the answer to my question is, what step am I doing?

• step 1: quesiton/problem

• step 5: make observations/ analyze

• step 7: communicate results

• step 3: write a hypothesis

What two things do I need to have for my experiment?

• materials list and procedure

• scapel and safety goggles

• materials list and microscope

• microscope and procedure

What is the minimum number of times you should repeat your experiment and why?

• 3, to ensure accurate results

• 2, to check your procedure

• 5, to correct your hypothesis

• 3, to check your procedure

Tags

NGSS.MS-PS2-5

which science tool should I use to mix chemicals by swirling?

• erlenmeyer flask

• florence flask

• beaker

• test tube

Which tool should I use if I want to grind solids into powder

• grinder

• meter stick

• mortar and pestle

• crucible

which tool should I use to measure liquids precisely?

• graduated cylinder

• beaker

• triple beam balance

• test tube