Jon and Sara are listing ways they can help the environment. Which item on their list is incorrect? 1. Carpool or ride bikes more
2. Recycle batteries and old phones
3. Only fill cars with gas when the tank is more than half empty
4. Use reusable grocery bags when shopping

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(drag each tile to the correct location.) categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. - a tentative statement used to guide scientific investigations. - makes predictions about future events. - can be tested by many independent researchers. - based on observations of natural phenomena. - a well-established, highly reliable explanation.

Which layer will become saturated first when rain falls?

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d