UNIT 4 TEST

James and Kolbe at Will Rogers Elementary were curious about the light post shadows. They began talking one day and noticed that the shadows appeared differently throughout the day. So they wanted to see what was happening. They conducted an experiment and recorded their results. Please analyze the data and choose the correct response below.

• That shadows are longer during noon hours but shorter in the morning.
• That the shadows are longer at the end of the day and at noon.
• The shadows are longer in the morning, but shorter at noon.

You measure a flag pole's shadow at noon during summer. How will that shadow compare to a shadow at noon during winter?

• The winter shadow is longer.
• The shadows are the same length.
• The winter shadow points south.

Why do we only see certain constellations at certain times of the year?

• Earth's orbit around the sun.
• The movement of the stars.
• The sun's motion.

James and Kolbe was also curious about the direction of the shadows. So they collected data and created a graph. What can you conclude, by looking at the graph below?

• The shadows are short in the morning and pointing in the opposite direction of the sun.
• The shadows are long in the morning and pointing in the opposite direction of the sun.
• The shadows are long at noon and pointing in the same direction as the sun.

BriAnna's family is installing solar panels on their roof. Solar panels use energy from the sun to create electricity. BriAnna's father is curious about what time of year they can expect to get the most electricity out of their solar panels. BriAnna shows him the chart below. Which of the following months can BriAnna and her father expect to see the most electricity from their solar panels?

• January, February, and March
• April May June
• May, June and July

If Lily measured her shadow in the afternoon, after school, which direction would her shadow be facing?

• South
• East
• West

Markius observes the constellation Orion. He first observes it at 8 P.M. and then later at 12 A.M. He notices that it is in a different place in the sky after four hours. What claim and evidence explain why Orion appears to be in different places in the sky at different times?

• Earth’s rotation causes Orion’s stars to move in an arc, tilting the constellation.
• Earth’s orbit toward Orion causes the constellation to appear to change size.
• Earth’s rotation moves Orion vertically so that its location in the sky changes.

In studying the stars, we found evidence about the brightness of stars. What did we conclude about the Sun's brightness?

• The Sun is closer to the Earth and that is why it is so bright.
• The Sun is a gigantic star, and that is why it is so bright.
• The Sun is the brightest star.

From our Flashlight investigation, we used different sizes of flashlight to represent a model of stars. In the second investigation when we used flashlights as models for stars, which flashlight showed the greater magnitude of brightness?

• They both showed the same magnitude of brightness.
• The flashlight that was bigger.
• The flashlight that smaller.

From our Flashlight investigation, we used the same sizes of flashlight to represent models of stars. In the first investigation, which flashlight showed the greater magnitude of brightness?

• The flashlight that was 300 feet away.
• The flashlight that was 30 feet away.
• The flashlight that was 3 feet away.