Final 1st Semester 2020

The study of matter and how it reacts is known as

• Biology

• Physics

• Chemistry

• Astrology

What is matter?

• the amount of stuff in a subtance

• Anything that has mass and takes up space

• the space a substance take up

• Data observed with the 5 senses

What is an hypothesis?

• a guess

• a testable, tentative explanation

• a theory

• data

Which substance is the gas?

• A
• B
• C

Tags

NGSS.MS-PS1-4

What are the two types of mixtures? 

• element and sub-atomic
• atoms and compounds
• homogeneous and heterogeneous
• element

____ is a physical, conceptual, or mathematical explanation of experimental data.

• Hypothesis

• Theory

• Model

• Qualitative data

Tags

NGSS.HS-PS1-4

Which term describes the systematic approach used in scientific study.

• Scientific inquiry

• Scientific questioning

• Scientific reasoning

• Scientific method

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

What is the mass number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

Ions are: 

• atoms with a positive or negative charge
• atoms with no charge
• atoms with ONLY a positive charge
• atoms with ONLY a negative charge