Chapter 4 (Energy): "If a lightbulb can illuminate a room, what can a thought illuminate?" Chapter 7 (Matter): "Can a memory be weighed in grams?"
If you are a homeschooling parent or a tutor, you can purchase the Aristo Teacher’s Guide (which contains answers) directly by contacting Aristo’s customer service. This is expensive (approx. HKD 400-600), but it is the only legal way to get official answer keys. Aristo Science 1b Pdf
Pay attention to the integration notes mentioned in the curriculum highlights. Chapter 4 (Energy): "If a lightbulb can illuminate