The states of matter is solid,liquid and gas & you go from there.
Answer:
A scientific problem is something you don't understand but you can do an experiment to help you understand. Scientific problems are usually based on observation of scientific phenomena. Here is some advice to help you identify a scientific problem you can address by designing your own experiment.
Explanation:
Example of a scientific problem are Clean Drinking Water.
The Gravitational Force between two objects which depends on masses and their separation apart
Nitrogen Dioxide is the Answer. If any doubt leave a comment
Answer: The change in the volume of the balloon is 144.4L
Explanation: Please see the attachments below