If you’re going to do a chemistry experiment, you’re going to use chemicals. How much of each one you use is going to change the results you get, so it’s important to find a way to accurately measure out the same amount of chemical each time.
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Yes, I did refresh the page several times…It still doesn’t contain a video.
You should have a video – try refreshing the page. Do you see it yet?
Hey Aurora, there isn’t a video on this lesson…is this a glitch?