Science 501 Goal 01

Lisa changes her model by adding another circle to represent oxygen as part of the molecule. How does this change what the model shows?

• The model now shows a different kind of molecule.

• The model now shows that water molecules can have two oxygen atoms

• The model now shows a larger water molecule.

Tags

NGSS.MS-PS1-1

Look the picture, choose the correct answer.

• The water molecule is a(n) atom because it is made of three atoms ..

• The water molecule is a(n) compound because it is made of two elements..

• The water molecule is a(n) compound because it is made of one compound .

Tags

NGSS.MS-PS1-1

Lisa makes a model of a water molecule. Which best describes an advantage of the model?

• The model shows that water exists as a solid, liquid, and gas.

• The model shows observable properties of water.

• The model shows parts of the molecule that are too small to see.

Tags

NGSS.MS-PS1-1

The pictures show four tools that can be used to measure properties of matter. Choose the tool used to measure the number of milliliters in a sample of matter.

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Alicia holds a tool over a pile of objects without touching the objects. Her tool picks up some of the objects in the pile but not all of them

• Alicia is testing the hardness of the objects in the pile and discovers that the paper clip and nail are made from steel.

• Alicia is testing the texture of the objects in the pile and discovers that the paper clip and nail are made from steel.

• Alicia is testing the magnetism of the objects in the pile and discovers that the paper clip and nail are made from steel.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Look the picture. Which other two properties can Gian identify without using any additional materials?

• Color and solubility

• Solubility and magnetism

• Color and texture

Look the picture. Which conclusion is supported by Gian’s investigation?

• He is observing a property because he is comparing the property to a standard unit of measure.

• He is observing a property because he is only using his senses to gather information.

• He is measuring a property because he is comparing the property to a standard unit of measure.

Tags

NGSS.MS-PS1-2

Look the picture. Which conclusion is supported by Gian’s investigation?

• The matter weighs less than 20 grams.

• The matter weighs more than 20 grams.

• The matter weighs 20 grams.

Which model would best demonstrate evidence of matter that cannot be seen?

• Burn a piece of paper to make ashes.

• Feel the heat given off by a lightbulb

• Blow up a balloon with helium gas.

Tags

NGSS.MS-PS1-4

Claire is studying properties of matter. She finds the following data in a science book. Claire has a sample of matter and knows that the sample is one of the four substances in the table. Her sample is white and has a crystal appearance. Which two substances could Claire have?

• X and Z

• W and Z

• X and Y

Tags

NGSS.MS-PS1-2