1. This Week in Science…

2. Stand up for all things TRUE.
DON’T BE LAST!
Stand up for all things TRUE. F

3. Stand up for all things TRUE.
DON’T BE LAST!
Stand up for all things TRUE. T

4. Stand up for all things TRUE.
DON’T BE LAST!
Stand up for all things TRUE. T

5. Stand up for all things TRUE.
DON’T BE LAST!
Stand up for all things TRUE. F

6. Stand up for all things TRUE.
DON’T BE LAST!
Stand up for all things TRUE. F

7. Stand up for all things TRUE.
DON’T BE LAST!
Stand up for all things TRUE. T

8. Stand up for all things TRUE.
DON’T BE LAST!
Stand up for all things TRUE. T

9. Stand up for all things TRUE.
DON’T BE LAST!
Stand up for all things TRUE. S F

10. Stand up for all things TRUE.
DON’T BE LAST!
Stand up for all things TRUE. T

11. Today’s Goal…
I can compare the magnetic field lines of a bar magnet, Earth, and an electromagnet.

12. Today’s Task… Read over every question.
Every person in the group needs to see every question.
Record your answers on a sheet of notebook paper.
Turn in your responses when your whole group is finished.

13. Which process is MOST suitable for the direct measurement of mass?
Using an electronic scale and expressing the results in Newtons per meter
Using a spring scale and expressing the results in ounces
Using a barometer and expressing the results in pounds per square inch
Using a balance and expressing the results in kilograms

14. Scientists observe a distant star and the four planets that orbit the star. They determine that the four planets have different diameters, but approximately the same mass. This star system is represented by the diagram below.
Which planet has the GREATEST gravitational attraction to the star?
Planet 1 C. Planet 3
Planet 2 D. Planet 4

15. Which of these has the GREATEST effect on the motion of planets in the solar system?
Electromagnetic forces
Frictional forces
Gravitational forces
Nuclear forces

16. Which pie chart BEST represents the composition of the atmosphere of Earth?D

17. Which diagram shows a magnetic field MOST similar to the magnetic field of Earth?

18. 6. Which of these BEST describes the effect the sun’s gravity has on the movement of planets in the solar system?
It determines the direction in which planets rotate on their axes.
It gives the initial push that makes planets revolve around the sun.
It holds planets in a particular orbit around the sun.
It pulls some planets closer to each other and pushes others farther away.

19. The existence of the planet Neptune was mathematically predicted before it was directly observed through a telescope in The prediction was based on the fact that the observed orbital path of Uranus was different from its expected path. Which characteristic of a planet would MOST directly affect the orbits of nearby objects in the solar system?
A. Its density
B. Its volume
C. Its magnetic field
D. Its gravitational field

20. The diagram below shows the shapes and relative sizes of four bodies in a star system. All four bodies have the same density. Which body would have the greatest gravitational attraction?
A. 1
B. 2
C. 3
D. 4

21. Which illustration of two magnets correctly shows their magnetic fields?

22. Which of these affects the strength of the gravitational force between Earth and the sun?
A. The tilt of the axis of Earth
B. The distance between Earth and the sun
C. The amount of energy Earth receives from the sun
The movement of molten metals in the core of Earth