MYA Science Review Part 1

The universe consists of many galaxies. Which choice correctly identifies our home galaxy and its type?

• Abell—elliptical

• Milky Way—spiral

• Sculptor—barred spiral

• Andromeda—irregular

Like many other space objects, Earth travels in a predictable path through space. Which of the following correctly describes this path?

• traveling around the Moon in a cycle that repeats every month

• orbiting the Sun along with seven other planets in the Solar System

• moving along with asteroids in an asteroid belt between Mars and Jupiter

• traveling in the same direction as comets, which is away from the Sun

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Earth’s galaxy contains billions of stars. Some stars appear brighter than others. Which of the following is the main reason that the Sun appears brighter from Earth than other stars in the galaxy?

• Our Sun is burning hydrogen.

• Our Sun is a much larger star.

• Our Sun is closer to Earth.

• Our Sun is a young star.

While both comets and asteroids are found to orbit the Sun in our Solar System, which choice correctly explains how they are different?

• Asteroids form a tail, and comets do not.

• Comets are much larger than asteroids.

• Comets are made of ice, dust, and rocky material. Asteroids are made of rock and metal material.

• Asteroids have long obits around the Sun. Comets orbit between Mars and Jupiter.

Tags

NGSS.MS-PS1-1

Joaquin tells his science class that galaxies consist of gas, dust, and many planets. What is the most important component of galaxies Joaquin is missing in his description?

• stars

• asteroids

• constellations

• comets

Planets in Earth’s Solar System are grouped according to their distance from the Sun. Which choice correctly identifies an inner planet and an outer planet and their correct characteristics?

• Inner: Saturn → made of rock

  Outer: Earth → made of rock

• Inner: Venus → made of rock

  Outer: Neptune → made of gas

• Inner: Mars → made of gas

  Outer: Jupiter → made of rock

• Inner: Uranus → made of gas

  Outer: Mercury → made of gas

Tags

NGSS.MS-ESS1-3

Shana designed a ramp that would roll a marble from point A to point B. She wants to see if she can use energy to set objects in motion. Where must point A be located in relation to point B in order for a force to act on the marble?

• above it

• next to it

• below it

• touching it

Tags

NGSS.MS-PS3-2

Ivy has a mixture of salt and sand. She wants to separate the two substances by pouring the mixture into a jar of water. How could Ivy speed up the separation of the two substances?

• Shake the jar.

• Put the jar into the freezer.

• Add a third substance such as soil to the jar.

• Remove some of the water from the jar before adding the mixture.

A fifth-grade science class puts half of a white tablet in a test tube with 10 milliliters (mL) of water at 21°C (70°F). The tablet bubbles rapidly for three minutes until it is gone. Students record the final temperature at 20°C (68°F). Which choice best identifies evidence that a chemical reaction occurred?

• tablet broke in half

• tablet was white

• tablet dissolved in the water

• change in water temperature

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Antonio and Addie want to know if perfume fumes affect plant height. They place five identical bean plants in five identical light boxes. In four of the boxes, they place 200 milliliters (mL) of perfume at different distances from the plants, and they make observations twice a week for one month. Which choice best identifies the observation data that should be included in their data table?

• leaf colors and root lengths

• amounts of perfume and types of plants

• dates, perfume distances, and height of plants

• types of perfume, stem colors, and number of flowers

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1