Scientific Knowledge

Which statement could apply to a scientific theory?

• It is unable to change.

• It is based only on a guess.

• It is a law created by scientists.

• It is widely accepted by scientists.

A group of people are kayaking down the Alafia River on a hot day and observe several alligators lying on the river bank. Which is the most likely explanation for this behavior?

• They are maintaining homeostasis in their bodies.

• They are camouflaging themselves from predators.

• They are competing for space to hunt for food.

• They are sweating to get rid of extra salt in their bodies.

A farmer applies different fertilizer to his cotton crops, to see which will make his plants grow the highest. What is the independent Variable?

• Height of plants

• Different cotton crops

• growth of plants

• Type of fertilizer

Tags

NGSS.MS-LS1-5

A farmer applies different fertilizer to his cotton crops, to see which will make his plants grow the highest. What is the dependent variable?

• Different cotton crops

• Height of plants

• Type of fertilizer

• Growth of plants

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Choose the correct option.

• The image is a diagram

• The image is not a diagram

• The image is a 3D model

• The image is not a model

Tags

NGSS.HS-LS1-7

Choose the correct option to complete the sentence:

This is a ______________ model.

• 2D image of a model of a 3D molecule

• three-dimensional image of a 2D atom

• 3D model of an atom

• 4D image of a model of a 3D atom

Tags

NGSS.MS-PS1-1

Choose the correct answers. Choose ALL that apply.

"Scientific models can represent..."

• Processes

• Things that are too big to be seen

• Things that are too small to be seen

• Things that are too complex to understand at once

Tags

NGSS.MS-ESS1-1

NGSS.MS-LS1-2

NGSS.MS-PS1-1

Fill in the blank:

"The ____________ has a negative charge and is very small".

(don't use capital letters!)

Tags

NGSS.MS-PS2-3

Fill in the blank:

"The ____________ has a positive charge and is very small although still bigger than the electron".

(don't use capital letters!)

Fill in the blank:

"The ____________ has no charge and is very small although still bigger than the electron".

(don't use capital letters!)