The factor that is deliberately changed or manipulated is

• A theory

• The dependent variable

• The data

• The independent variable

Tags

NGSS.MS-PS2-2

A scientific theory may change because

• the public doesn't like it

• new evidence is found

• an important scientist says it isn't true

• theories never change

Tags

NGSS.MS-LS2-4

In an experiment testing the effect of different colored lights on plant growth, the dependent variable is

• the colors of the lights

• the type of plant used

• the amount of light the plants receive

• the amount of growth of the plants

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

A control group

• is used to measure the results found in the experimental group

• is not important and can be skipped

• is the only group that has the independent variable

• the group that shows the results of the independent variable

Observations that deal with a number or amount are called

• qualitative

• quantitative

• inferences

• evidence

Heat can easily travel through metal, which is why it is often used to make pots & pans.

This describes the physical property of

• thermal conductivity

• electrical conductivity

• malleability

• luster

Tags

NGSS.MS-PS3-3

Match the following properties and their definitions

• The amount of space an object takes up

• Density

• How shiny on object is or can be

• Volume

• How big or small on object is

• Luster

• The amount of matter in an object

• Mass

• The amount of mass in a given volume

• Size

Properties that require the substance to change into something else in order to observe them are

(a)   properties; while those that do not lead to a change in the substance are ​ (b)   properties.

• chemical
• physical
• quantitative
• scientific

Tags

NGSS.MS-PS1-4

Organize these options into the right categories

Groups:

(a) Physical Properties

,

(b) Chemical properties

• Oxidation

• Electrical conductivity

• State of matter (solid, liquid, gas)

• Reactivity

• Magnetism

• Flammability

• Melting point

• Solubility

• Chemical stability

• Color

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Match the images with their property. I'll give you a hint also...

• Flammability

• 
• Malleability

• 
• Chemical reactivity

• 
• Luster

• 

Tags

NGSS.MS-PS1-2