Spreadsheets Across the Curriculum activity. In advance of an actual lab activity, …
Spreadsheets Across the Curriculum activity. In advance of an actual lab activity, students virtually simulate the calibration of a laboratory micropipettor. QL: Accuracy and precision.
Small groups of students examine a candle to consider its chemical properties. …
Small groups of students examine a candle to consider its chemical properties. Class discussion follows to consider macro vs. molecular events, energy, phase changes, etc.
This activity explains how one can probe shapes with different-sized pinheads and …
This activity explains how one can probe shapes with different-sized pinheads and draws an analogy between particle energy/wavelength, resolution, and pinhead size
This activity explains how one can probe shapes with different-sized pinheads and …
This activity explains how one can probe shapes with different-sized pinheads and draws an analogy between particle energy/wavelength, resolution, and pinhead size
Working in teams of three, students perform quantitative observational experiments on the …
Working in teams of three, students perform quantitative observational experiments on the motion of LEGO MINDSTORMS(TM) NXT robotic vehicles powered by the stored potential energy of rubber bands. They experiment with different vehicle modifications (such as wheel type, payload, rubber band type and lubrication) and monitor the effects on vehicle performance. The main point of the activity, however, is for students to understand that through the manipulation of mechanics, a rubber band can be used in a rather non-traditional configuration to power a vehicle. In addition, this activity reinforces the idea that elastic energy can be stored as potential energy.
There are two types of catalysis reactions: homogeneous and heterogeneous. In a …
There are two types of catalysis reactions: homogeneous and heterogeneous. In a homogeneous reaction, the catalyst is in the same phase as the reactants. In a heterogeneous reaction, the catalyst is in a different phase from the reactants. This activity addresses homogeneous catalysis.
This interactive resource adapted from the National Park Service presents the key …
This interactive resource adapted from the National Park Service presents the key concepts of cave and karst systems, including how and where they form, different types, and various cave environments.
This investigation will have students testing how heating and cooling can change …
This investigation will have students testing how heating and cooling can change the state of matter. They will test a variety of materials determine whether a change takes place through heating/cooling.
In this video segment adapted from NOVA, scientists are on the hunt …
In this video segment adapted from NOVA, scientists are on the hunt for tornadoes. Using Doppler radar, they gather data in the hopes of solving the mystery of how tornadoes form.
Why do atoms react with some elements but not others, and why …
Why do atoms react with some elements but not others, and why do they form compounds with such different properties? One of the reasons is the bonds that they form. This pathway provides resources relating to the reasons that atoms bond, and the three different types of bonds that form between atoms: covalent, ionic and metallic.
This activity is a lab where students make qualitative and quantitative observation …
This activity is a lab where students make qualitative and quantitative observation on a chemical change. They will see that gases have mass in accordance with the conservation of matter.
Spreadsheets Across Curriculum module. Students build spreadsheets to compare the time course …
Spreadsheets Across Curriculum module. Students build spreadsheets to compare the time course of a reaction that goes to completion to that of an equilibrium reaction.
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