School & Group Catalog


At Your School
Type & Format
1 hr
Grade Level
Physical, Early Childhood

$300 for second showing
Travel fees may apply

Students help OMSI staff conduct experiments that vividly demonstrate the predictable (and sometimes unpredictable) reactions of matter, including some that have explosive results. Topics include nature of chemical reactions, physical vs. chemical changes and safety. Note: Unless requested otherwise, this assembly includes use of an open flame.

Assembly programs are a great way to bring classrooms together for a learning adventure.

A minimum of 2 weeks' advance notice is required for all registration requests. If you have questions, please contact us at 503.797.4661 or



Location Map

Travel Fees

If you are located less than 40 miles from OMSI, there are no travel fees.
If you are located more than 40 miles from OMSI, travel fees are charged as follows:
• By scheduling a program when we’re in your area (per map), each school pays $105 per instructor per day, in addition to the program cost. No mileage is charged.
• If we make a special trip to your school (when we’re not scheduled to be in your area per map), each school is charged 55¢ per round-trip mile (subject to federal rate changes) and $105 per instructor per day, in addition to the program cost.
• Visits to areas beyond the boundaries of the map are available by request and travel fees are negotiated on a case-by-case basis.


View Resources

Standards Addressed

Structure and Function:
1.1P.1 - Compare and contrast physical properties and composition of objects.
1.1E.1 - Examine characteristics and physical properties of Earth materials.
3.1P.1 - Compare and contrast the properties of states of matter.
4.1E.1 - Identify properties, uses, and availability of Earth materials.
6.1P.1 - Describe physical and chemical properties of matter and how they can be measured.
7.1P.1 - Explain that all matter is made of atoms, elements are composed of a single kind of atom, and compounds are composed of two or more different elements.
8.1P.1 - Describe the atomic model and explain how the types and arrangements of atoms determine the physical and chemical properties of elements and compounds.
H.1P.1 - Explain how atomic structure is related to the properties of elements and their position in the Periodic Table. Explain how the composition of the nucleus is related to isotopes and radioactivity.
H.1P.2 - Describe how different types and strengths of bonds affect the physical and chemical properties of compounds.

Interaction and Change:
4.2P.1 - Describe physical changes in matter and explain how they occur.
8.2P.1 - Compare and contrast physical and chemical changes and describe how the law of conservation of mass applies to these changes.
8.2P.2 - Explain how energy is transferred, transformed, and conserved.
H.2P.1 - Explain how chemical reactions result from the making and breaking of bonds in a process that absorbs or releases energy. Explain how different factors can affect the rate of a chemical reaction.

Scientific Inquiry:
2.3S.2 - Make predictions about living and non-living things and events in the environment based on observed patterns.