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Month: February 2018

Clayton Ellis – Enzyme Catalysis Webinar – February 22, 2018

There is a great deal of biochemistry in the science curriculum that is a part of the foundational knowledge. One of the major molecules of study are proteins including how they are able to catalyze reactions.
The PASCO pressure sensor provides a very easy method and relatively quick way to determine how various factors might affect the rate of reaction. Students can then infer how the enzyme might be denatured due to the decrease in activity.
PASCO Products Used:
PASport Absolute Pressure Sensor
Alternately the Wireless Pressure Sensor can be used for this experiment.

Gauss Magnetism Accelerator: Grade 7 Science Project

Exploring Energy in Motion.
An amazing science fair project by Ryan V. of Oakville, Ontario.

If at first you don’t succeed, try-try again and this was exactly Ryan V’s attitude in completing his remarkable grade 7 science fair project on Magnetic Linear Accelerators.

The accelerator that Ryan built used a series of magnets and stationary marbles positioned in stages along a wooden track that resulted in a chain reaction with a final marble shooting off the end at an impressive speed.

Ryan was very interested in knowing the marble’s speed at various stages along the track and tried numerous techniques to take accurate measurements – however, all attempts were unsuccessful.

This is where AYVA and PASCO Scientific were able to help!  Using a PASCO Smart Gate and a Wireless Airlink Ryan was able to get the data he needed.

See the video for an excellent explanation and demonstration of how it all works.  No doubt Ryan will get an A++ for his hard work and persistence.

Products used:

Smart Gate

AirLink

Capstone

“Like Dissolves Like,” But How Much?

After introducing the concept of “like dissolves like,” sensors can be used to quantify how much solute is dissolved in a solution.

Conductivity is a great tool for quantifying the amount of particular types of solute in a solution. Depending on the type of solute, students can “conduct” an experiment that makes them concentrate on concentration.

There is a linear relationship between the concentration of an electrolyte and its conductivity.

In this activity, based on a lab in Essential Chemistry, the relationship between concentration and conductivity is explored and data is collected with the Wireless Conductivity sensor. The first set of data represents a solution with increasing amounts of salt added. Since salt is an electrolyte, the conductivity is linearly related to the concentration. The second set of data represents a sugar solution. Sugar is soluble in water but, as a non-electrolyte, the concentration cannot be related to the conductivity measurement.

Sugar may be sweet, but the conductivity data of sugar solutions is definitely not. Luckily, sugar molecules have a chiral center and are optically active. The amount of optical rotation will depend on the type and amount of sugar present. Using a Wireless Polarimeter, you can measure the optical rotation of a variety of sugar solution concentrations.

The Polarimeter measures the light intensity vs the angle of rotation.

The change in optical rotation is linearly related to the concentration of the sugar solution.

Determining the amount of solute in a solution is an important part of any chemistry class. Having the appropriate sensors, and knowing the properties of the solutes and solvents, gives students the tools they need to quantify the concentration of a solution.

Related Products:

Wireless Conductivity Sensor (PS-3210)
Polarimeter (PS-3237)


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  • A big thanks for all the help and support you provided – I want to take some time to say a big thanks for all the help and support you provided me to select the best equipment in order to make the best possible use of the funds available. It is really exceptional that you happily connected with me multiple times even during the weekend and was always motivated to help. Please accept my big thanks for this.

    Gurpreet Sidhu | Physics Instructor | University College of North | The Pas, MB

  • Wireless Spectrometer Big Hit With Students – PASCO’s wireless spectrometer has been utilized very well by our earth science and physical science teachers. It’s an excellent piece of equipment and we have very much enjoyed its addition to enriching our classroom. It definitely brings students to a higher level of understanding wave interaction at a molecular level.

    Matt Tumbach | Secondary Instructional Technology Leader | Tommy Douglas Collegiate | Saskatoon, SK

  • Excellent Smart Cart – I thought the cart was excellent. The quick sampling rate for force will be very useful for momentum and collision labs we do. I’m recommending we include this in our order for next school year.

    Reed Jeffrey | Science Department Head | Upper Canada College | Toronto ON

  • Your lab equipment is of the highest quality and technical support is always there to help. During the 25 years we have used a wide array of lab equipment including computer interfacing. Your Pasco line has a high profile in our lab and will continue to do so far into the future.

    Bob Chin | Lab Technician | Kwantlen Polytechnic University | Surrey, BC

  • Datalogging Activities are Cross-Curricular

    Throughout the province of Nova Scotia, PASCO’s probeware technology has been merged with the rollout of the new P-6 curriculum. We chose a number of sensors for use with our project-based activities. Both the functionality and mobility of PASCO’s dataloggers enable students to collect authentic, real-world data, test their hypotheses and build knowledge.

    Mark Richards | Technology Integration Consultant | Annapolis Valley R.S.B. | Nova Scotia

  • We have a large number of PASCO wireless spectrometers and love how they have improved the learning experience for our students.

    Shawn McFadden | Technical Specialist | Ryerson University | Toronto, Ontario

  • During distance learning due to COVID-19 school shut down, I was given a short window to collect what I could from my classroom to teach online. The PASCO wireless sensors and Smart Carts were my top priority to collect to implement distance learning. By sharing experimental data with students via SPARKVue, the sensors were pivotal in creating an online experience that still allowed students to grow with their lab skills. It was easy to record videos of the data collection and share the data with my students. They did a phenomenal job examining and interpreting the data.


    Michelle Brosseau | Physics Teacher | Ursuline College Chatham | Chatham, Ontario

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