Students conducted the following experiment: Procedure: 1. Cut off a piece of steel wool as indicated by the teacher’s example. 2. Wring out any excess vinegar. 3. Describe the appearance of the steel wool in the data table. 4. Place the steel wool into the flask and cover the opening of the flask with the balloon. 5. Label your flask. 6. Find the mass of the system (flask, steel wool, balloon) and record the mass in the data table. 7. Allow the system to remain untouched for 24 hours. 24 hours later: The student data can be seen in the table above. The equation for this reaction is 2Fe + O2 → 2FeO Did this experiment obey the law of conservation of matter? Label the diagram below to show that it did.

Figure 10-1 study figure 10-1. the strong nuclear force felt by a single proton in a large nucleus

Heat flow inside earth activity i chose chemistry cause there is no science alert! the newspaper has been hacked, and all of the headlines have been changed to reflect old legends. it is your task to make sure they are corrected. choose one of the newspaper headlines. you will rewrite the headline and a one-to-two-paragraph article to make the news scientifically correct. be sure to include the following in your corrected newspaper article: new title reflecting correct information detailed information about the processes and tectonic plate interactions that are causing the geological event to occur real-world example of where to find the geological event on earth (picture and location) also review the grading rubric before you begin.

Modern weaponry has increased the number of deaths in wars and violent conflicts.