The Heart and Circulatory System - How They Work

Check out the next video to see how our body systems are interrelated.  They work together to bring oxygen to all of our cells.


Read the following:
Your Heart and Circulatory System
What's Blood?
Biology for Kids Cardiovascular System

Quiz yourself

Developing strategies for multiplying decimals

Intro to fractions (4th)

Valentine's Day Special: How the heart actually pumps blood

Field Trip -- The Tech Museum

Check out Tech Museum before our field trip.

How your digestive system works

Interactive diagram of the digestive system.

Kids Health -- Digestive System Movie

Kids Health -- Digestive System Slideshow

Digestive System Game

Quiz yourself

The Eye -- Part 2

There was a question asked about how we see color today in class.  Check out the video below:

Introduction to the Triangle

Number Rock Triangle Song

Human Senses -- The Eye (4th grade)

We will use these videos to enhance and explore what we already know about the human eye.

Food Chains, Food Webs and Top Predators (5th)

Food Chains and Food Webs

What happens when the top predator is removed from an ecosystem?

Apex Predator Facts for Kids

What happens when part of the food chain goes extinct?

Waves -- Light and Sound

Light and sound both travel in waves.  How are they similar?  How are they different?  What can you learn from these two videos?


Read about light and waves.

Physics of light and sound for kids.

Sound and Light Waves

Energy travels in waves.  Watch the video and run the simulator.  Can you explain what you learned about waves?



We have been learning about sound and waves.  Learn more at the following links:

1. The Longest Tin Can Phone Ever (video)
2. How do you get can phones to go around corners? (reading)
3. Secret Bells (Experiment)

Try out the wave simulator below:

Click to Run

Bonus Activities About Sound and Waves

What else can you learn about sound and waves?  Try out a few of these activities and take notes about what you learned.

Try out this online oscilloscope.  Use these questions to guide you.

1. Sounds that are a mix of pitches make messy waves. Can you find a sound that makes a simple wave? (Try whistling.)
2. What happens to the oscilloscope picture when you make a sound louder or softer?
3. What happens when you make a sound higher or lower?

What is the highest and lowest pitch that you can hear?

• The video starts with a tone so low you probably can't hear it. Keep listening.
• When you do you start hearing the hum? Notice when it gets so high you can't hear it anymore.
• While you're listening, watch the waves. They change with the pitch — from long wavelengths to short.

Video: Singing Roads

• The pitch of a sound — how high or low it is — depends on the vibration that made the sound. The quicker the vibration goes back and forth, the higher the sound.
• On this singing road, the vibrations of a car play a tune. Bumps in the road called rumble strips make the car vibrate.
• Which set of rumble strips plays the higher note?

Now Hear This! The sound designed to drive teenagers away.

• What can you learn by reading about this?

Nat Geo Kids:  The Science of Sound Playlist

• This is a list of 13 videos about sound.  Each one will play immediately after the last one.

How Quiet Can You Be?

Multiplying Fractions by Whole Numbers (5th Grade)

Watch the video above and then watch a music video about it.

Measuring Angles

Practice measuring angles and more at this link.