S4P3. Students will demonstrate the relationship between the application of a force and the resulting change in position and motion on an object.
a. Identify simple machines and explain their uses (lever, pulley, wedge, inclined plane, screw, wheel and axle).
b. Using different size objects, observe how force affects speed and motion.
c. Explain what happens to the speed or direction of an object when a greater force than the initial one is applied.
d. Demonstrate the effect of gravitational force on the motion of an object.
S4E1. Students will compare and contrast the physical attributes of stars, star patterns, and planets.
a. Recognize the physical attributes of stars in the night sky such as number, size, color and patterns.
b. Compare the similarities and differences of planets to the stars in appearance, position, and number in the night sky.
c. Explain why the pattern of stars in a constellation stays the same, but a planet can be seen in different locations at different times.
d. Identify how technology is used to observe distant objects in the sky.
S4E2. Students will model the position and motion of the earth in the solar system and will explain the role of relative position and motion in determining sequence of the phases of the moon.
a. Explain the day/night cycle of the earth using a model.
b. Explain the sequence of the phases of the moon.
c. Demonstrate the revolution of the earth around the sun and the earth’s tilt to explain the seasonal changes.
d. Demonstrate the relative size and order from the sun of the planets in the solar system.
