Give three ways you experience normal force throughout your day. What is the difference between applied force and normal force? Friction is a force, too. How can friction help you in your daily life? How can it hurt you? In your own words, explain what non-contact forces are. How does gravitational force affect your daily life? What force causes static cling? What two types of charges does this force have? Explain how magnetic force works on a magnet. How are electricity and magnets connected? Explain in your own words how electromagnetism works. What do electrons have to do with electrical current? Explain how the atom is a part of the electrical current process. What forces come in pairs? Give an example not in the lesson. Two electromagnets are running with equal amounts of electric current. Electromagnet A uses a piece of iron as its metal core, while electromagnet B uses a piece of silver. Which one would have a stronger magnetic field? How do forces work in nature? What factors affect the strength of forces? Snout Goo Article: Key Questions and Terms Notes How do ampullae help sharks find prey in murky water? What are protons? How does the transmission of protons relate to electric force? Are the sharks using a contact or non-contact force to detect prey? A Moment of Science: Because Science Says So Video: Key Questions and Terms Notes What can the scientific method help you do? What is a hypothesis? What does the independent variable do?

freezing

deposition

condensation

explanation;

melting also called fusion is the process where solid becomes liquid, sublimation is the process where solid becomes gaseous without first changing to liquid, deposition involves change from gaseous to solid state, freezing involves change from liquid to solid, boiling or evaporation involves change of liquid to gaseous state, while condensation is the change from gaseous state to liquid state.

endothermic reactions involves absorption of heat from the surroundings or the environment while exothermic reactions involves loss of heat energy to the surroundings.

in this case, sublimation, evaporation and melting are endothermic reactions (gain energy from the environment) while, freezing, deposition and condensation are exothermic (loss of energy to the surroundings) reactions.

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up

the five characteristics of adolescence are biological growth and development, and undefined status, increased decision making, increased pressure and the search of self.

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me