2025 Intro to Chem and Water

Presentation

•

Biology

•

9th Grade

•

Easy

•

NGSS

MS-PS1-1, HS-PS1-1, MS-PS1-4

Standards-aligned

Mary Lisa Mattfeld

Used 2+ times

FREE Resource

26 Slides • 21 Questions

Multiple Choice

What is matter?

Anything that has mass and volume

Everything inclulding energy

A state of being a liquid

Only things that have energy

Categorize

Options (7)

The number of protons in a single atom of an element

1 or 2 letters used to represent each element

12.01

The total mass of the neutrons and protons in an atom

Found by subratcting the atomic number from atomic mass

Use the information from the picture to categorize the elements properties according to the periodic table

Atomic number

Element symbol

Atomic Mass

Number of Neutrons

Labelling

Label this atom's particles.

Drag labels to their correct position on the image

Nucleus

Electrons

Protons

Neutrons

Multiple Choice

Compounds

are made of two or more types of atoms chemically bonded together

are made of one type of atom

are found on the periodic table

can be separated into their individual parts through physical means

Multiple Choice

A(n) _____ is a chemically pure substance that is made of two or more atoms bonded together. The atoms can be of the same or of different elements

Element

Compound

Mixture

Molecule

Multiple Choice

Why do elements bond?

To be friends

To create a new element

To become stable

Multiple Choice

How are covalent bonds formed?

Sharing of electrons

Transfer of electrons

Multiple Choice

How are ionic bonds formed?

Transfer of electrons

Sharing of electrons

Multiple Choice

What is a valence electron?

The sum of neutrons and protons.

The # of electrons in the last shell.

A type of bond.

A popular compound.

Multiple Choice

The octet rules states that most elements want to have _____ valence electrons.

Multiple Choice

How many valence electrons does Oxygen (O) have?

Multiple Choice

What type of bonding does this picture show?

Ionic

Covalent

Why water is polar:

Sharing of electrons is unequal between atoms

-The electrons spend more time around the oxygen atom, making the oxygen more negative.
-Because electrons spend less time around the hydrogen atoms, they are more positive.
-Causes the molecule to be bent.

Multiple Choice

A water molecule is a _______ since the negative end of one water molecule is attracted to the positive end of another water molecule.

polar molecule

sustain life

surface tension

specific heat

Multiple Choice

A liquid substance capable of dissolving other substances is called a...

solvent

solute

solution

Multiple Choice

An attraction between molecules of different substances is called...

cohesion

adhesion

Multiple Choice

Water is called the ________ because it dissolves so many substances.

surface tension

universal solvent

capillary action

specific heat

Multiple Choice

Why does ice float?

water expands when it freezes, making ice less dense than water

water compacts when it freezes, making ice more dense than water

hydrogen bonds in water push the ice to the surface

ice is afraid of water, and avoids it

Multiple Choice

What is the correct chemical formula for water?

H₂O

HO₂

H₂O₂

₂H₁O

Multiple Choice

You body sweats to help prevent you from overheating. How does water regulate temperature?

it lets heat pass through it

it absorbs a lot of heat, then decreases in temperature

it absorbs a lot of heat, but only increases a little in temperature

heat is afraid of water and avoids it

Multiple Choice

A water strider can skate along the top of a pond because:

covalent bonds result in water cohesion (surface tension)

hydrogen bonds result in water cohesion (surface tension)

water striders have adapted to take advantage of water cohesion

water striders are afraid of water and avoid it

Multiple Choice

Peyton wants to see if the salinity of water affects the population numbers of anchovies in a local body of water.

What would be the INDEPENDENT variable in his experiment?

Biomass of aquatic plants

Level of salinity in a given area

Water temperature

Total number of fish observed

After you finish this:

Use the information in this presenation to complete the water properties graphic organizer that you teacher will give you. The graphic organizer is on paper.

Show answer

Auto Play

Slide 1 / 47

SLIDE

Similar Resources on Wayground

42 questions

Europe Map 2

Presentation

•

9th Grade

39 questions

DNA and Protein Synthesis STAAR Review lesson HONORS

Presentation

•

9th Grade

43 questions

3.1 Introduction to Global Systems

Presentation

•

9th Grade

40 questions

Concordância verbal

Presentation

•

42 questions

Prokaryotic Cells

Presentation

•

9th Grade

42 questions

Eukaryotic Organelles

Presentation

•

9th Grade

42 questions

Eukaryotes vs Prokaryotes and Organelles

Presentation

•

9th Grade

40 questions

If - Joseph Rudyard Kipling

Presentation

•

9th Grade

Popular Resources on Wayground

24 questions

PBIS-HGMS Day 10

Quiz

•

6th - 8th Grade

10 questions

HCS SCI 03 Summer School Review 3

Quiz

•

3rd Grade

11 questions

Home Scope

Quiz

•

7th - 8th Grade

15 questions

HCS SCI 05 Summer School Assessment 3 Review

Quiz

•

5th Grade

35 questions

Lufkin Road Middle School Student Handbook & Policies Assessment

Quiz

•

7th Grade

18 questions

Geo 11.3 Area of Circles and Sectors

Quiz

•

9th - 11th Grade

Discover more resources for Biology

18 questions

Geo 11.3 Area of Circles and Sectors

Quiz

•

9th - 11th Grade