Search Results
Showing results 221 to 240 of 332
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-143.jpg?itok=SnADsgX8)
Catch the (Sound) Wave!
Source Institutions
See and hear how sound waves travel through different types of materials. Extend the experiment online and learn how you can "see" with sound waves using ultrasound.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-625.jpg?itok=QKpkhPf3)
Ocean in a Bottle
Source Institutions
In this simulation activity, learners observe what can happen when ocean waves churn up water and oil from an oil spill.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-244.png?itok=8gSU4cgX)
Measuring Blood Pressure in Space
Source Institutions
In this activity (page 105 of the PDF), learners measure heart rate and blood pressure and learn how to obtain consistent measurements during repeated tests.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-725.png?itok=s1xn6V19)
Measurement: It Takes Ten
Source Institutions
In this math lesson, learners practice estimation and measurement skills as they move from station to station calculating length, volume, weight, and area.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-302.png?itok=t0WLcOKH)
Arrows
Source Institutions
In this activity, learners surprise their eyes with an optical illusion involving arrows made out of pipe cleaners.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-353.gif?itok=sjo-_XBv)
Drop IT!: Depth Perception
Source Institutions
These two activities (4th on the page) demonstrate the importance of two eyes in judging depth.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-317.png?itok=vxbWdAE-)
Drinking Straw Pulse Measurer
Source Institutions
In this health activity, learners create a device so that they not only feel their heartbeat, but also see it, using a straw and some clay.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-733.jpg?itok=BKK5l7sL)
Gross Growth
Source Institutions
In this activity, learners grow germs collected from their hands and other objects. They cultivate the germs on a growth medium (such as slices of grapefruit or processed cheese) for a week.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-385.jpg?itok=DIsas6FD)
Model Eardrum
Source Institutions
In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-727.jpg?itok=l145z5xT)
Bendy Bones
Source Institutions
In this activity (on pages 19-24 of PDF), learners soak chicken bones or eggshells in vinegar for several days.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-144.jpg?itok=qvl2aHil)
Melts in Your Bag, Not in Your Hand
Source Institutions
In this activity, learners use chocolate to explore how the Sun transfers heat to the Earth through radiation.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-280.png?itok=MMlTwZsi)
Fruit Fly Trap
Source Institutions
Build a fruit fly trap out of a 2-liter plastic bottle and some rotten fruit! Fruit flies are easy to catch in warm weather. Once you catch some, you will be able to see their life cycle up-close.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-178.jpg?itok=9DmsJzNw)
¡Investigando hormigas!
Source Institutions
En esta tira cómica, Mateo y Cientina observan unas hormigas para contestar algunas preguntas: ¿Qué comen las hormigas?
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-318.gif?itok=nHBM6Auh)
Trees: Recorders of Climate Change
Source Institutions
In this activity, learners are introduced to tree rings by examining a cross section of a tree, also known as a “tree cookie.” They discover how tree age can be determined by studying the rings and ho
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-786.png?itok=CzqilLxr)
Oboe? Oh, Boy!
Source Institutions
In this activity, learners create a straw oboe to explore sound and pitch.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-330.jpg?itok=JlHNlusx)
Protect That BRAIN!: Mr. Egghead
Source Institutions
This activity demonstrates the importance of wearing a helmet to protect the brain. An egg is used to symbolize a head with the shell as the skull and the inside of the egg as the brain.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-137.jpg?itok=vPx1f0mA)
The Great Fossil Find
Source Institutions
On an imaginary fossil hunt, learners "find" (remove from envelope) paper "fossils" of some unknown creature, only a few at a time.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-656.jpg?itok=qeX57VCJ)
Partners in Pollination
Source Institutions
In this activity, learners identify the reproductive parts of plants and the animal (bee) structures involved in pollination.
Signs of Change: Studying Tree Rings
Source Institutions
In this very hands-on lesson, learners will investigate dendrochronology (the study of tree rings to answer ecological questions about the recent past) and come up with conclusions as to what possible
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-486.png?itok=ut3s45c3)
Medical Mystery
Source Institutions
This activity (on pages 15-23) combines interactive role-playing and graphing to introduce learners to the health affects of pollen.