Which of these actions does NOT result in a physical change?

leaving an ice cube in a glass at room temperature

folding a piece of paper into a paper airplane

burning a log in a fireplace

mixing sugar into a pitcher of iced tea

Why is coal referred to as a fossil fuel? A. Coal was formed from decaying layers of plants in swamps millions of years ago. They fossilized into coal. B. Coal was formed from marine organisms millions of years ago. They fossilized into coal. C.

2. Why do you think the cell has a method for producing ATP even when no oxygen is present?

What organelle Captures energy from the sunlight and uses it to produce food in plant cells?

On an oncology unit, the nurse hears noises coming from a client's room. the client is found throwing objects at the walls and has just picked up the phone and is screaming, "how can god do this to me? it is the third type of cancer i have had.

This type of joint enable the structure to move side to side and up and down, but with less range of motion than the Saddle joint. A. Planar B. Ball-and-Socket C. Pivot D. Condyloid

How is a blood pressure reading affected if a wide adult cuff is used on a small child? blood pressure readings will be higher?

Why are the structure and function of the pont du gard described as "marks of roman civilization"?

Make a statement of hybrid cars

Which of the following statements is most accurate? A. Warm air sinks. B. Warm air is less dense than cold air. C. Warm air is denser than cold air. D. Warm air exerts more pressure on the land than cold air.

How do solid solutions and gas solutions form.?