Pratt 7th grade science semester review

What is a sign that a chemical change has occurred?

• The physical properties are the same.
• The state of the matter has changed.
• The production of heat, light, or smoke is observed.
• The substance seems to have disappeared.

Tags

NGSS.MS-PS1-2

Examples of chemical properties include __________.

• length and mass
• flammability and reactivity
• melting point and boiling point
• color and shape

Matter takes up __________and has__________.

• space; heat
• space; temperature
• heat; temperature
• space; mass

Tags

NGSS.MS-PS1-5

Which is a physical property?

• ability to rust
• reactivity with oxygen
• flammability
• Color

Which of the following is not made of matter?

• Dirt
• Air
• Water
• Light

What is a well-tested concept that explains a wide range of observations?

• scientific inquiry
• scientific inference
• science theory
• scientific observation

Tags

NGSS.HS-ESS1-2

Measurements of the heights of various plants in an experiment are called

• inferneces
• data
• inquiries
• theories

Tags

NGSS.MS-LS2-1

Which of the following helps scientists all over the world communicate about experimental results with one another

• they all speak English
• They all use the International System of Units
• they all use an English System of Measurement
• they all speak Latin

When you analyze a table of measurements taken during an experiment, you are

• manipulating variables
• making theories
• interpreting data
• posing questions

Tags

NGSS.MS-PS3-4

NGSS.MS-PS2-5

When a scientist shares his or her findings with other scientists, they are

• experimenting
• communicating
• hypothesizing
• theorizing