The atomic number of a made-up element is 413. What would you also know about this element with the given information?

Embryos of different species look very similar, which shows that the organisms share a ancestor.

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line