What has the highest density and why?

• Honey, because it has sunk to the bottom.

• Air, because it is all around us.

• Oil, because it floats to the bottom.

• Water, because it is in the middle.

Tags

NGSS.MS-PS1-2

The first book will begin to fall when energy is​ ​ ____ to the system. The rest of the books will fall because energy is​ ___ from one book to the next.

• The first book will begin to fall when energy is​ ​added to the system. The rest of the books will fall because energy is​ absorbed from one book to the next.

• The first book will begin to fall when energy is​ ​removed from the system. The rest of the books will fall because energy is​ absorbed from one book to the next.

• The first book will begin to fall when energy is​ ​added to the system. The rest of the books will fall because energy is​ transferred from one book to the next.

• The first book will begin to fall when energy is​ ​removed from the system. The rest of the books will fall because energy is​ transferred from one book to the next.

Tags

NGSS.MS-PS3-5

A group of students built a tower out of cardboard. On the roof of their tower they place a small ball of Play-Doh. The students are conducting an experiment to test mass and gravity. Which statement is true about the mass and the gravity of the tower and Play-Doh.

• A large amount of Play-Doh on the roof, will cause a large enough force to make the roof collapse.

• A small amount of Play-Doh on the roof, will cause a large enough force to make the roof collapse.

• A large amount of Play-Doh on the roof, will cause a small enough force to make the roof collapse.

• A small amount of Play-Doh on the roof, will cause a small enough force to make the roof collapse.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which of these items are magnetic?

• balloon, shirt, eraser

• scissors, book, tape measure

• screw, paperclip, key
• eraser, vase, box

Tags

NGSS.MS-PS2-5

Which items are thermal conductors?

• Wooden spoon, leaf, penny

• Plastic cup, paper, trumpet

• Silver, frying pan, thermos
• Rubber tire, thermos, wool gloves

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which phases represent the first and third quarter moons?

• 2,8

• 2,6

• 3,7

• 4,6

Tags

NGSS.MS-ESS1-1

What does friction do?

• Causes objects to move faster

• Causes objects to move slower

• Causes objects to not move at all

• Has no effect on objects

Which surface would have the most friction?

• Plastic

• Tall Carpet

• Wax paper

• Smooth wood

This state of matter is rigid, has a fixed shape, and a fixed volume. Its particles are packed together very tightly.

• Solid

• Liquid

• Gas

• Plasma

This state of matter is not rigid and does not have a fixed shape. It does have a fixed volume. Its particles are packed a little more loosely.

• Plasma
• Gas
• Solid
• Liquid

Tags

NGSS.5-PS1-1

NGSS.5-PS1-3