What is the answer for this...Scientific investigations must be well to be sure the data collected will help answer the scientist's question???

Compare and contrast physical changes with chemical changes.

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat

Imagine one batch of soup (batch “a”) is made with 8.19 g/can of salt, according to the recipe, and a second batch of soup (batch “b”) is made with 8.32 g/can of salt. explain which batch would be more resistant to frost damage if it is shipped a great distance in winter and explain why.