Lab safety and science tools

Grade 6 Science Worksheet - Challenge Me

Circle the best answer.

1. Read this first

   Lab card

   Step 1: put on goggles; Step 2: pour vinegar into a cup of baking soda; Step 3: if it bubbles over, wipe it with a sleeve; Step 4: taste the bubbly mix.

2. 1.

   Which fix makes Jun's baking-soda lab card safe?

   • Fix step 3; a small taste is fine
   • Fix step 4; a sleeve works fine for wiping up spills
   • Skip step 1 to save time
   • Step 3: tell the teacher; step 4: no tasting
3. 2.

   Step 1: carry the microscope by the eyepiece; Step 2: start with the 40× objective. Kira's microscope card says: carry it by the eyepiece, then start with the 40× objective. Which fix is right?

   • Start on 40× to see the most from the start
   • Carry it by arm and base; start on the lowest power
   • Focus with the coarse knob at 40×
   • Carry it by the eyepiece, since that part sits on top
4. 3.

   Luz's friend says goggles are just for labs with flames. Which response is best?

   • Disagree: goggles are for liquids, heat and splashes too
   • Disagree: goggles are for outdoor work and sports, not labs
   • Agree: goggles are just for show
   • Agree: water labs do not need goggles
5. 4.

   Milo's cousin says small lab spills are fine to ignore. Which response is best?

   • Agree: small spills cause no trouble
   • Disagree: tell the teacher about every spill
   • Disagree: a spill should be smelled up close first
   • Agree: clean it alone without telling anyone
6. 5.

   Noah's friend says a white lab powder that looks like sugar is fine to taste. Which response is best?

   • Disagree: smell it up close instead
   • Agree: it looks just like sugar
   • Agree: a tiny taste is fine
   • Disagree: nothing in a lab is tasted, even if it looks like food
7. 6.

   Four safety plan cards. Pia plans to warm water on a hot plate to test how fast sugar dissolves. Which safety plan is right?

   • Goggles, and heat the water alone
   • Hair loose, and an adult nearby
   • Goggles, hair tied back, and an adult at the hot plate
   • An adult nearby, but no goggles
8. 7.

   Ren wants to describe how vinegar smells. Which plan is safe?

   • Sniff straight from the bottle
   • Taste a drop to compare it
   • Pour some on a hand and sniff it
   • Goggles on, then waft the air toward the nose
9. 8.

   A lab is over and a little water spilled. Which clean-up order should Tala follow?

   • Report the spill, put tools away, wash hands
   • Have a snack first, then clean up
   • Take goggles off before pouring liquids away
   • Wash hands, then leave the spill for later
10. 9.

    Zee needs 30 mL of water. Which tool and reading are right?

    • A thermometer, read at the 30 mark
    • A graduated cylinder, curve bottom on 30 mL at eye level
    • A graduated cylinder, read looking down from above
    • A graduated cylinder, filled until the edges touch 30 mL
11. 10.

    Bo sees a leaf cell at 100× with a 10× eyepiece and wants 400×. What should Bo do?

    • Switch to the 4× objective
    • Switch to the 40× objective
    • Turn the coarse knob at high power
    • Hold the eyepiece farther from the eye