Question: While heating test tubes in a Bunsen burner, move test tubes ____________ . Group of answer choices in a twirling motion at an angle back

While heating test tubes in a Bunsen burner, move test tubes ____________ . Group of answer choices in a twirling motion at an angle back and forth in an upright position up and down keeping your wrist rigid in a twirling motion and in an upright position back and forth at an angle

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