Directions: Write True if the statement is correct and False if it is not correct. Write your answer on the answer sheet.
1. Friction is a force that pulls object downward.
2. Friction is a force that resists motion.
3. We must use extra force to start the motion of stationary
objects.
4. Static friction does not allow an object to move.
5. Kinetic energy allows an object to move.​

Match the types of competition to their descriptions.

One statements is an example of a scientific observation. another statement is an example of a scientific explanation. identify the correct statement for each category to illustrate how scientific explanations are inferred from scientific observations.

Imagine that certain laws of physics could be ignored and you were able to travel vast distances in moments. now imagine that you traveled to an earth-like planet located light-years away that is known to support life. think about what you’ve learned in this unit and make an argument for what you think would be the dominant type of life form on this planet. consider whether a notochord is required for an organism to manipulate its environment and become a dominant creature.