salt - We must add ________ with water for the solution, swish - What must we do with the saltwater?, dish soap - We must pour liquid ___________ into the second cup, water - What must we add in the dish soap?, bubbles - We must gently mix the solutions without ________, conical tube - What tube must we use?, rubbing alcohol - After mixing it with saltwater in the tube, we must add cold ______ ________, cap - What must we close after adding the alcohol?, still - We must hold _______ the tube for 2 mins. , DNA - What can you extract from the experiement?,

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