Vernier Graphical Analysis vs PASCO Chemvue

Graphical Analysis™ is a tool for science students to collect, graph, and analyze data from Vernier sensors. Sensor data-collection support: • Vernier Go Direct® sensors - with Bluetooth® wireless technology • Vernier Go Wireless® Heart Rate and Go Wireless Exercise Heart Rate monitors • Vernier LabQuest® sensors used with a LabQuest Stream interface Additional experiment options: • Data Sharing via Wi-Fi connection to LabQuest 2 or Logger Pro® 3 • Manual Entry Note: Sensor data collection and Data Sharing require the purchase of hardware from Vernier Science Education. Manual entry of data can be performed without a hardware purchase. For more information on Data Sharing, visit http://www.vernier.com/css Key Features - Data Collection • Multi-sensor data-collection support • Time Based, Event Based, Drop Counting, and Photogate data-collection modes • Configurable data-collection rate and duration for time-based data collection • Optional triggering of time-based data collection based on sensor value • Customizable unit display on supported sensors • Sensor calibrations • Option to zero and reverse sensor readings • Graph match feature for use with motion detectors • Manual entry of data from keyboard and clipboard Key Features - Data Analysis • Display one, two, or three graphs simultaneously • View data in a table or show a graph and table side-by-side • Draw Predictions on a graph to uncover misconceptions • Examine, interpolate/extrapolate, and select data • Use Tangent tool to show instantaneous rates of change of the data • Find area under a curve using the Integral tool • Apply Statistics calculations to find mean, min, max, and standard deviation • Perform curve fits, including linear, quadratic, natural exponent, and more • Add calculated columns based on existing data to linearize data or investigate related concepts Key Features - Collaboration and Sharing • Create text annotations and add graph titles • Export graphs and data for printing and inclusion in lab reports • Export data in .CSV format for analysis of data in spreadsheet software such as Excel, Google Sheets, and Numbers • Adjust font sizes for easier viewing when presenting to your class Vernier Science Education has over 35 years of experience in providing effective learning resources for understanding experimental data in science and math classrooms. Graphical Analysis 4 is a part of the extensive system of sensors, interfaces, and data-collection software from Vernier for science and STEM education.

Chemvue supports data collection for up to six distinct sensors simultaneously. Run statistics on the entire data set (or a select portion), choose from 10 curve fitting functions (plot the curve and view its formula), and show error bars based on sensor specifications or statistics from multiple trials. Chemvue’s sleek interface allows students to easily collect and produce necessary elements for standard chemistry lab reports, yet is sophisticated enough for college chemistry labs. For more complex chemistry analysis, data can be easily exported in multiple file formats to additional software for further analysis. About Chemvue: Chemvue has three methods of data input: 1. Real-time measurements from sensors 2. User-entered data 3. Calculations on column data including slope, best fit, area under the curve, and frequency of events in a given selection Features - Auto-Configuration for easy page setup - Calibration to ensure sensor accuracy - Calculator with functionality for high-level chemistry - Number Formatter to choose significant figures, fixed decimal places, and scientific notation - Sampling options from a wide range of intervals for data point collection to fit your experimental - needs - Export options support the sharing of CSV data and PNG images - Toggle between dark and light mode for easy viewing - Software defaults to large data display upon sensor pairing for immediate real-time data - monitoring - Four different standard displays available: live data reading, data table, graph, and a graph and data table split page for lab report exports. - Saves data digitally in tables as defined by user during collection set up - Table view allows collecting data systematically on timed basis of users choosing - User can define conditions of when to collect data alongside entered values - User can calculate new columns of data using any columns of collected data - Pairs with up to 6 wireless chemical sensors wirelessly dependably (additional wired sensors can be connected depending on your interface) - User-determined rates of collection - Connected sensors can run independently of each other or can be synchronized to share equal collection rates - Graph collected sensor data, user-entered data, or machine-calculated data - Show error bars based on the reported specifications of each probe, or allow the user to calculate a cross-run average based on your data set What Students Can Do: - Measure ion concentrations in solution - Determine reaction kinetics by color changes - Monitor gas pressure concurrently with volume or temperature changes - Log solution volumes to find acid-base strengths - Determine solution potentials from their electric potentials - Track battery capacity following current levels - Investigate nuclear probabilities measuring rates of decay from unstable isotopes - Run titrations with multiple sensors to determine accurate concentrations Free Trial and Purchase: - There is no free trial period for Chemvue. - Chemvue requires a purchase of a one-year license which will grant full access to all features of Chemvue.