OpenStax Free Textbooks

 OpenStax: Subjects

Physics

Resources
The Wonders of Physics Traveling Outreach Program - Including teacher resources, Just for Kids, and more.

Videos
The Wonders of Physics | YouTube

Science A to Z

A
Acoustics
Sound Absorption and Reflection

C
Cohesion
Testing the Properties of Water
Science: Chemistry

G
Genetics
What Gregor Mendel & Growing Peas Can Teach Us about Heredity

H
Heart
Build A Functioning Heart Model
Science: Biology

S
Sound
Science: Physics

5/30/2020
I was making a glass of lemonade. As I was stirring it. I observed it was making various notes. At the bottom of the glass it was making a higher note. At the top of the tall glass, it was making a lower note. As I drunk my lemonade, it was making a higher note when I stirred it. It kept on getting higher and higher as I drank the lemonade. It did stop changing notes at a certain point. If you are making lemonade (or if you just want to do this with water or any other type of drink). Have fun!

This also works with any height of a glass cup or bowl or even plastic cups or bowls.

Plastic Cup Sound Experiment
This is the safest with kids.

Materials:
- Various sizes of plastic cups
- Spoons

Take various sizes of cups. Use the scientific method. Predict what will happen with each size of cup. Will it be a high note? Will it a low low? What will it be? Test your hypothesis out by having the child, teenager, or adult tap a spoon on the top of the different sizes of bowls. What will happen if you add water to each cup? Predict what will happen. Illustrate your experiment.

Information
Physics for Kids: Basics of Sound | Ducksters

Experiments
Sound Absorption and Reflection
Physics for Kids: Basics of Sound | Ducksters - Experiments: Sound Pitch, Sound Waves, Sound Vibrations

Surface Tension
Testing the Properties of Water
Science: Chemistry

T
Transpiration
Transpiration Science Experiments
- Celery
- Carnation or White Flower

Science: Chemistry

W
Water
Testing the Properties of Water
Science: Chemistry


Information and Science Experiments
100 Hands-On Activities for Middle School and High School

At Home Science Experiments | Steve Spangler Science

Rader's: Biology4Kids | Chem4Kids | Cosmos4Kids | Geography4kids | Physics4Kids

Ducksters: Astronomy | Biology | Chemistry | Earth Science | Physics | Environment

Physics: An Overview of Simple Machines

Jackie sent this to me from one of her kids at a science youth center.

One of the kids, Marcus, did some research on his own and helped to create this page about simple machines

Simple Machines | 6 Types Of Simple Machines

Note: I updated this on 4/29/2022 this link to the new link. It was first published on 3/2/16.