We use lemon juice from a bottle and dilute it and then add sodium hydrogencarbonate . If I add more sodium hydrogen carbonate temperature will fall lower. Which variable we can change? How I measure the variable I change? How can I find out how much to increase the sodium hydrogen carbonate by each test? What change I have to measure and how I do that?

We use lemon juice from a bottle and dilute it and then add sodium hyd

1.	We use lemon juice from a bottle and dilute it and then add sodium hydrogencarbonate . If I add more sodium hydrogen carbonate temperature will fall lower. Which variable we can change? How I measure the variable I change? How can I find out how much to increase the sodium hydrogen carbonate by each test? What change I have to measure and how I do that?
Answer» Farzana and Vaishall are investigating the reaction of LEMON juice and sodium hydrogencarbonate . They use lemon juice from a bottle and dilute it. They then add sodium hydrogen CARBONATE using a SPATULA. They want to answer the question Does adding more sodium hydrogen carbonate make the temperature fall lower? Which VARIABLE will they change? How will they measure the variable they change? How could they find out how much to INCREASE the sodium hydrogencarbonate. Which change will they measure