5th Grade Science Review

25. A student lists the following information about atoms.

1. Atoms are too small to be observed by the human eye. 2. Atoms make up all types of matter. 3. Each type of atom has a certain mass.

Which statement best describes another feature of atoms?

• Atoms bond together to form molecules.

• Atoms of different types are the same size

• Atoms are spaced the same in different types of matter

• Atoms in gases are more easily observed than atoms in solids.

Tags

NGSS.MS-PS1-1

22. Humans’ understanding of our solar system has changed over time. Scientists throughout history have made models based on observations.

Which statement best represents Ptolemy’s model of the solar system?

• Like Aristotle, Ptolemy placed Earth at the center of the solar system.

• Like Aristotle, Ptolemy placed the Sun at the center of the solar system.

• Like Copernicus, Ptolemy placed Earth at the center of the solar system.

• Like Copernicus, Ptolemy placed the Sun at the center of the solar system.

19. Some medicines must be kept cool in a refrigerator to be effective. Which step would a scientist most likely take to prepare for a warm-weather natural disaster that could cause several days without electricity?

• Stock a freezer with ice

• Install a wood-burning stove.

• Gather a generator and the fuel to power it.

• Store enough medicine to make up for delivery delays

Tags

NGSS.MS-ESS3-2

NGSS.MS-PS3-3

15. The Moon completes an orbit around Earth about once a month. Which two statements best explain why the Moon stays in orbit around Earth? n

• A magnetic attraction exists between the Moon and Earth.

• A force of motion causes Earth to push outwardly on the Moon.

• A force of attraction due to Earth’s mass pulls the Moon toward Earth.

• A repelling force keeps the Moon moving in a straight line around Earth.

• A force of attraction due to the Moon’s mass pulls Earth toward the Moon.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

14. Locating the North Star has helped people determine direction throughout history. Its northern position in the sky stays the same. Sailors used it to help navigate their ships across open water. Later, people began to use compasses for navigating ships.

A student claims that using a compass results in better navigation than locating the North Star. Which statement provides the best evidence to support the student’s claim?

• A compass needle moves as the user changes direction.

• A compass can be used to find direction during the daytime.

• A compass needle must be made of a magnetic iron material.

• A compass allows the user to find directions other than north.

13. Two students investigate how forces affect the motion of a marble. The students place a marble on a flat table. On opposite sides of the marble, the students each blow air through a straw toward the marble.

If the air coming out of student 1’s straw has a greater force than the air coming out of student 2’s straw, in which direction will the marble move and why?

• toward student 1 because the forces are balanced

• toward student 2 because the forces are balanced

• toward student 1 because the forces are unbalanced

• toward student 2 because the forces are unbalanced

Tags

NGSS.MS-PS2-2

The Bactrian camel has humps made of fat that it can use for energy when needed. The kangaroo rat

drink water; it gets all it needs from food that it eats.

Which statement describes how these adaptations affect the Bactrian camel and the kangaroo rat?

• Allow them to survive a drought

• Increase their ability to catch prey

• C. Allow them to scare their predators

• Make them blend into the environment

Tags

NGSS.MS-LS2-1

2. When observing a very small piece of dust in a liquid under a microscope, the dust appears to

jiggle slightly. This movement results from the dust interacting with the molecules in the liquid. What

property of the molecules in the liquid causes this effect?

• The molecules briefly form chemical bonds with nearby objects.

• The molecules are always in random motion.

• The molecules transfer an electric charge to the dust particles.

• The molecules frequently change shape.

15. Which cellular process converts light energy from the sun into chemical energy that organisms

use for life functions?

• digestion, in which starch is broken down into simple sugars

• respiration, in which oxygen is used and carbon dioxide is given off

• fermentation, in which sugar is broken down and alcohol is given off

• photosynthesis, in which carbon dioxide is used and sugars are produced

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

25. What is the best ecological reason for using recycled paper?

• Recycled paper lasts longer.

• Recycled paper is safer to use.

• Recycled paper is much cheaper to buy.

• Recycled paper conserves resources.