LT 1.1 Flashcards
IN CASE OF FIRE INSIDE THE LABORATORY, A FIRE EXTINGUISHER IS TO BE USED. WHAT ACRONYM SHOULD YOU REMEMBER IN HANDLING A FIRE EXTINGUISHER?
P.A.S.S.
YOU WILL PERFORM A LABORATORY PROCEDURE. YOU WILL USE A BEAKER WITH WATEER, WIRE GAUZE, A TRIPOD, A THERMOMETER, AND AN ALCOHOL BURNER. WHICH PROCEDURE WILL YOU MOST LIKELY PERFORM?
DETERMINING BOILING POINT
WHICH IS NOT PART OF P.P.E. IN THE SCIENCE LABORATORY?
HARD HAT
YOU WANT TO MEASURE THE MASS OF WATER IN THE LABORATORY BUT YOU DO NOT HAVE A GRADUATED CYLINDER. ALL YOU HAVE IS A GLASS CUP WITH NO MEASUREMENT INDICATORS AND A TRIPLE BEAM BALANCE. WHICH OF THE FOLLOWING STEPS IS NOT PART OF WHAT YOU ARE SUPPOSED TO DO?
CONVERT THE MASS TO LITERS USING THE DENSITY OF WATER AS 1g/mL
WHAT MEASUREMENT CAN BE GIVEN BY THE MEASURING “GRADUATED CYLINDER”
MILLILITERS
IN THE SCIENTIFIC METHOD, WHICH IS REFERRED TO AS TENTATIVE ANSWER TO THE PROBLEM?
HYPOTHESIS
YOU ARE WORKING ON A LABORATORY PROCEDURE INVOLVING HEAT. YOUR LAB PARTNER ACCIDENTALY DROPS A GLASS OF BEAKER WHICH SHATTERS,CAUSING A PIECE OF GLASS TO GO INTO HIS EYE. WHAT SAFETY EQUIPMENT SHOULD HE BE WEARING?
GOGGLES
ALL OF THE FOLLOWING ARE METAL WARES EXCEPT: (CLAMP,TONGS,CRUCIBLE,TRIPOD)
CRUCIBLE
WHAT IS THE MAIN PUPOSE OF BUNSEN BURNER
FOR HEATING SUBSTANCES ON A BURNER
YOU WANT TO LEARN MORE ABOUT THE FEEDING HABITS OF LIZARDS. WHAT IS THE BEST WAY TO GO ABOUT IT?
FORM A HYPOTHESIS, CONDUCT AN EXPERIMENT, RECORD DATA, MAKE A CONCLUSION
AN EXAMPLE, “THE ADDITION OF CAFFEINE CAN INCREASE THE HEART RATE OF EARTHWORMS” IS CALLED A __
HYPOTHESIS
IN AN EXPERIMENT GROWTH AND HEART RATE COULD BE AN EXAMPLE OF __
DEPENDENT OR RESPONDING VARIABLE
IN AN EXPERIMENT CLASSICAL MUSIC AND ADDITION OF CAFFEINE COULD BE AN EXAMPLE OF
INDEPENDENT OR MANIPULATED VARIABLE
“EXPOSING TOMATO PLANTS TO CLASSICAL MUSIC AFFECTS THEIR GROWTH AND PRODUCTION OF TOMATOES NEGATIVELY” IS AN EXAMPLE OF
CONCLUSION
YOU ARE HEATING A PIECE OF GLASS AND NOW YOU WANT TO PICK IT UP. WHAT IS THE BEST THING YOU SHOULD DO?
USE TONGS