Here are the most useful pieces of laboratory equipment for each task:
1)
Holding 50 mL of boiling water:
→ Use a
beaker. Beakers can hold liquids and withstand heat, so they’re safe for holding boiling water.
2)
Melting a crystal over a Bunsen Burner:
→ Use a
crucible. Crucibles are made to handle high heat and are perfect for melting solids directly over a flame.
3)
Pouring 50 mL of acid from one container to another:
→ Use a
funnel. A funnel helps guide the liquid safely into the new container without spilling — especially important with acids!
4)
Measuring exactly 43 mL of water:
→ Use a
graduated cylinder. It’s designed to measure liquid volumes accurately, and you can read the meniscus at eye level for precision.
5)
Weighing out 120 grams of sodium chloride:
→ Use a
balance (or electronic scale). This tool measures mass in grams precisely — just place a container on it, tare it, then add salt until it reads 120 g.
6)
Keeping 100 grams of a compound from absorbing atmospheric moisture:
→ Use a
desiccator. It’s a sealed container with drying material inside that keeps things dry by removing humidity from the air around them.
7)
Suspending glassware over a Bunsen burner:
→ Use an
iron ring stand with wire gauze. The iron ring holds the wire gauze, which supports beakers or flasks evenly over the flame.
8)
Removing chemicals from a reagent bottle:
→ Use a
spatula (for solids) or
pipette/dropper (for liquids). Spatulas scoop powders; pipettes draw up small amounts of liquid carefully.
9)
Keeping the contents of a boiling beaker from splattering:
→ Use a
watch glass. Place it loosely on top of the beaker — it lets steam escape but catches splashes.
10)
Mixing two liquids together:
→ Use a
stirring rod (glass rod). Gently swirl or stir the mixture in a beaker or flask to combine the liquids evenly.
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Final Answer:
1) Beaker
2) Crucible
3) Funnel
4) Graduated cylinder
5) Balance (electronic scale)
6) Desiccator
7) Iron ring stand with wire gauze
8) Spatula (solids) or pipette/dropper (liquids)
9) Watch glass
10) Stirring rod
Parent Tip: Review the logic above to help your child master the concept of chemistry lab equipment worksheet.
