Structure of Matter
In this science worksheet, learners read about the oxygen and phlogiston theories. Students also answer 2 comprehension questions related to the reading.
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NASA Engineering Design Challenges - Spacecraft Structures
What kind of design challenges are there in building structures to support rocket engines? The unit takes design teams through the process of building the lightest possible thrust support structure that can withstand the necessary forces...
6th - 9th Science
Explaining Change Processes Using a Simple Particle Model of Matter
The more things change, the more they stay the same. This unit includes seven lessons starting with physical change and moving through to chemical change. Conservation of matter is explained clearly with multiple hands-on activities and...
6th - 8th Science CCSS: Adaptable
Classification of Matter
Steel is an example of homogeneous mixture, also called an alloy, which is made of iron and carbon. The presentation introduces learners to elements, compounds, and mixtures. They explore their similarities and differences, and then take...
9th - 12th Science CCSS: Adaptable
Study Jams! Atoms: Protons, Neutrons, Electrons
What's smaller than a kiwi seed? Atoms! Basic atomic structure is detailed for beginning chemists in a light-hearted animation. Protons and neutrons are explained as part of the nucleus, and so are electrons that encircle the nucleus....
4th - 8th Science CCSS: Adaptable
The 2,400-Year Search for the Atom
From ancient Greek philosophers to early American Quakers, people have sought to understand the composition of matter for millennia. Follow along with this video as it explores the long scientific journey that eventually led to the...
5 mins 5th - 12th Science CCSS: Adaptable
String Theory and the Hidden Structures of the Universe
When we take things apart, we can learn how they work. Physicist Clifford Johnson explains how we break down all objects into elementary particles of matter and forces. Patterns have been identified with the particles, the existence dark...
8 mins 9th - Higher Ed Science CCSS: Adaptable