Bryson pours oil into a glass of water. The oil floats on top of the water. What does this tell you about the density of oil compared to water?

• Oil is denser than water.

• Oil is less dense than water.

• Oil and water have the same density.

• Oil has no density.

Tags

TEKS.SCI.6.6D

Mia is observing an ice cube melting in a glass of water. Which of the following best describes the movement of molecules in the water compared to the ice cube?

• Molecules in the water move slower than in the ice cube.

• Molecules in the water move faster and slide past each other, while in the ice cube they vibrate in place.

• Molecules in the water are fixed in place.

• Molecules in the water do not move at all.

Tags

TEKS.SCI.6.6A

Liam is observing water in three different states: ice (solid), liquid water, and steam (gas). Which of the following statements best compares the kinetic energy of water molecules in these three states?

• Atoms in solids have the most kinetic energy.

• Atoms in liquids have the least kinetic energy.

• Atoms in gases have the most kinetic energy.

• Atoms in solids and gases have the same kinetic energy.

Tags

TEKS.SCI.6.6A

Match each object’s position in water to its density relative to water.

• Less dense than water

• 
• more dense than water

• 
• same density as water

• 

Tags

TEKS.SCI.6.6D

Click on the picture that has the lowest kinetic energy?

Answer explanation

Molecules in a solid vibrate and move slowly compared to the molecules in a liquid or gas, so there is less kinetic energy

Tags

TEKS.SCI.6.6A

What state of matter is shown in the picture? Describe what you see that makes you think that?

Tags

TEKS.SCI.6.6A

Match the vocabulary word with the correct definition.

• States of Matter

• The different forms in which matter can be found

• Solid

• The state of matter that has a definite

  shape and volume. Their shape and volume cannot be easily changed. (ex. ice)

• Liquid

• Anything that has mass and takes up space. It cannot be created nor destroyed.

• Matter

• The state of

  matter that has a definite volume but no fixed shape (ex. water)

• Gas

• The state of matter that has no definite shape and take the shape of their container. (ex. water vapor)

Tags

TEKS.SCI.6.6A

Explain the difference between an atom and a molecule.

• One molecule is made of one atom.
• One molecule is always made of different particles.
• One molecule is made of more than one atom.
• One molecule is made of more than two atoms.

Tags

TEKS.SCI.6.6A

Xavier is curious about what everything around him, like his desk, books, and even the air, is made of. What are all these things made of?

• dust

• atoms

• water

• molecules

• midichlorians

Tags

TEKS.SCI.6.6A

Look at the picture and match the following:

• C

• Density

  1.05g/ml

• B

• Density

  0.89 g/ml

• A

• Density 1.25g/ml

Tags

NGSS.MS-PS1-2