Which action describes an experimental investigation?
• A. Measuring the temperatures at which two rock samples melt
• B. Exploring the relationship of the material in a rock sample and its
hardness
•
C. Describing the types of materials that make up one rock sample
• D. Comparing the sizes of the crystals in two rock samples
BMIT
I would suggest asking a trusted adult or teacher or redoing the lesson. Cheating isn't a good path: you will not do well in the future if you always search for answers on the internet.
