Science Review

1. Butter has a melting point of 35ºC. Ice has a melting point of 0ºC. What would most likely happen if a plate of butter and a plate with ice were both placed on the table for 3 hours at 20ºC?

• The butter and the ice will both remain solid
• The butter and ice will both become liquids
• The butter will remain a solid, and the ice will turn to water
• The butter will become a liquid, and the ice will remain solid

2. Students in a 5th grade class are learning about constellations. They have learned that some constellations can be seen in the night sky all year long. Other constellations can be seen only during certain times of the year. Which one of these is the best explanation for this phenomena?

• Earth orbits around the Sun once each year. Our view into space through the night sky changes as we orbit. The the night sky looks slightly different each night because Earth is in a different spot in its orbit
• The Earth rotates on its axis. Some nights you might be facing a different direction than on other nights and have a different view of constellations
• The constellations that are farther away can only be see when you are at a high elevation. Therefore, if you are at sea level, there are some constellations that are not visible
• Constellations roam around in a figure 8 and the curves are so large that sometimes they move out of our line of vision

The 5th grade students are making model rockets. The rockets are propelled by a dissolving an antacid tablet. Students are wondering if the size of the pieces of antacid tablet will affect the distance the rocket flies.For this experiment, which procedure would be best to answer the question?

• Change the amount of water for each trial. Do it once with 20 ml of water and once with 30 ml of water
• Repeat the experiment in four trials using the same materials each time
• Repeat the experiment four times and use different size pieces of antacid each time
• Crush one antacid tablet into powder for trial one. Use a whole uncrushed antacid tablet for trial two

4. The size of a galaxy is determined by measuring the distance across the widest part. The table only shows five of the many galaxies in the universe.This table shows some of the galaxies and their size.Which statement is true?

• There are five galaxies in the universe, and they are all different sizes
• There are no galaxies that are twice as large as the Milky Way
• The galaxies in the universe do not get any smaller than the Milky Way
• There are galaxies in the universe that are twice the size of the Milky Way

Tags

CCSS.4.NBT.A.2

5. Which star will appear the brightest in the night sky?

• 1
• 2
• 3
• 4

6. Using the Stars Distances from Earth Table, which star would appear the dimmest in the night sky?

• 1
• 2
• 3
• 4

7. Our Sun is the brightest and biggest star in the universe.

• true
• false

8. Which of these best describes the positions of the Sun, the moon, and the Earth during a total solar eclipse?

• The Sun, the moon and the Earth are in a straight line with the Sun in between the moon and the Earth
• The Sun and the Earth are in a straight line and the moon is at an angle between the Earth and the Sun
• The Sun, the moon and the Earth are in a straight line and the moon is in between the Sun and the Earth
• The Sun and moon are in a straight line. The Earth is not in line but is at an angle on the side of the moon away from the Sun

9. How do plants grow differently in March compared to August in the Northern Hemisphere?

• As the days become steadily longer, plants grow better
• As the days become steadily shorter, plants grow better
• As the Earth travels farther from the sun, plants grow better
• As winter approaches, the plants grow better

10. What is true about how the number of daylight hours is different at different times of the year on the West Coast of the United States?

• The number of daylight hours is greater in December than it is in March
• The number of daylight hours is greater in June than in September
• The number of daylight hours is greater in January than in September
• The number of daylight hours is greater in September than in June