Which statement is true about a triple beam balance and spring scale?(1 point)
Responses
Both a triple beam balance and a spring scale are used to measure the weight of an object.
A triple beam balance is used to measure the weight of an object, and a spring scale is used to measure the mass of an object.
Both a triple beam balance and a spring scale are used to measure the mass of an object.
A triple beam balance is used to measure the mass of an object, and a spring scale is used to measure the weight of an object.
Both a triple beam balance and a spring scale are used to measure the weight of an object.
Why is agar medium used in Petri dishes?(1 point)
Responses
It makes bacteria appear larger.
It makes cells glow.
It helps microorganisms grow.
It sterilizes the petri dish.
It helps microorganisms grow.
Which statement accurately describes test tubes and beakers?(1 point)
Responses
Beakers can be held over a flame; test tubes cannot.
Beakers can be held over a flame; test tubes cannot.
Test tubes are better for transferring liquids than beakers.
Test tubes are better for transferring liquids than beakers.
Beakers have liquid volume (mL) markings on the side of them; test tubes are unmarked.
Beakers have liquid volume (mL) markings on the side of them; test tubes are unmarked.
Beakers and test tubes both have rounded bottoms.
Beakers and test tubes both have rounded bottoms.
Beakers can be held over a flame; test tubes cannot.
Which is a disadvantage of using Celsius thermometers?(1 point)
Responses
They can take accurate temperature readings.
They can take accurate temperature readings.
They can measure the boiling point of a liquid.
They can measure the boiling point of a liquid.
They can measure temperatures of liquids quickly.
They can measure temperatures of liquids quickly.
They can contain mercury that is very harmful to humans.