Food color is dropped into water to give it color physical or chemical change

If you wanted to make a peanut butter and banana sandwich model that represented Earth's layers by thickness, which would be the best material to have represent Earth's crust? Select one: a. A thin tortilla wrap b. Thick slices of bread c.

5 the main predators of field mice in a certain ecosystem are rattlesnakes and foxes. suppose humans begin building neighborhoods in the ecosystem, driving out many of the indigenous rattlesnakes and foxes.

Two different liquids are poured together in an open container. Bubbles begin to form. After the bubbling stops, it is determined that the total weight of the two liquids is less than before they were poured together.

Substances to be smelled and tasted must always be ___ surrounding the receptor cell

What property of water is most important in allowing glucose to be dissolved in blood?

What is the difference between bacillus, coccus, and spirillum

What is always true of scientific practices a. They prove a hypothesis to be correct b. They involve steps performed in the same order c. They seek to produce verifiable data d. They lead to the same interpretation

Which statement is true about the scientific method

How do cells correct errors in DNA that would disrupt their function

Which is true of oxidation? a) It is a physical process b) No change occurs in the makeup of rock c) Rocks weather at different rates d) Water freezes in cracks in rock