6th Grade Science (quarters 1&2)

What does the red sphere in the water molecule model most likely represent?

• Hydrogen atom

• Oxygen atom

• Carbon atom

• Nitrogen atom

Tags

NGSS.MS-PS1-1

How many hydrogen atoms are present in one molecule of H₂?

• 2

• 1

• 3

• 4

Tags

NGSS.MS-PS1-1

How many atoms of oxygen are present in one molecule of Carbon Dioxide (CO₂)?

• 2

• 1

• 3

• 4

Tags

NGSS.MS-PS1-1

How many atoms are present in one molecule of Nitrogen (N)?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many hydrogen atoms are present in one molecule of Methane (CH₄)?

• 4

• 2

• 1

• 6

Tags

NGSS.MS-PS1-1

Which description best describes how the atoms make up the molecule in figure 1?

• Two hydrogen (H) atoms and two oxygen (O) atoms in a water molecule.

• One hydrogen (H) atom and two oxygen (O) atoms in a water molecule.

• Two hydrogen (H) atoms and no oxygen (O) atom in a water molecule.

• Two hydrogen (H) atoms and one oxygen (O) atom in a water molecule.

Tags

NGSS.MS-PS1-1

Which of the following is a molecule that contains two or more atoms? You can choose more than one correct answer.

• H₂

• O

• CO₂

• N

• CH₄

Tags

NGSS.MS-PS1-1

Use the image below to answer the question. The image below is a student drawing of methane. Image: Methane Key: H = Hydrogen C = Carbon Which of the following best explains why the students drawing of methane is incorrect?

• The students switched the atoms around in methane. Students should create a model showing one carbon (C) atom connected to four hydrogen (H) atoms.

• The students did not switch the atoms around in methane. The students labeled the drawing correctly.

• The students did not use all atoms found in methane. Students should create a model showing four carbon (C) atoms connected to four hydrogen (H) atoms.

• The students did not use all atoms found in methane. Students should create a model showing four carbon (C) atoms connected to one hydrogen (H) atoms.

Tags

NGSS.MS-PS1-1

Which model shows the structure and movement of particles in a liquid?

• Model 1

• Model 2

• Model 3

• Model 4

Tags

NGSS.MS-PS1-4

The three jars show the movement of particles in three states of matter. Which sequence of jars shows the change of motion of particles when thermal energy is removed?

• Jar P, Jar Q, Jar R

• Jar R, Jar Q, Jar P

• Jar P, Jar Q

• Jar Q, Jar R

Tags

NGSS.MS-PS1-4