# Dew Point & Relative Humidity Lab in °C and °F

Avg. Ratings: 2.0 (1 Review)

## REVIEWS (1)

Total Ratings: 1
Avg. Ratings: 2.0 out of 5

Sort all by:

Yes: 1 No: 0
Education / Teacher / MN
Yes, I recommend
Ward's Dew Point and Relative Humidity is a great lab activity for teaching these concepts to 8th graders. My issues are that the metal cups tend to rust and its hard to determine when the dew forms. The original lab set I bought had small black cups that I still use and its much easier for students to see the condensation. Also, the thermometers in the psychrometers tend to shift and move so its difficult to calibrate them and keep them accurate.
WARDSCI.com associate Published 06/16/2018
We are sorry to hear that the dew point and relative humidity did not meet your expectations. The black coated cups are no longer available. The kit contains metal cans to conduct the cold temperature of the ice more quickly than a plastic one will. Drying the cans thoroughly after each use should help to deter rust from forming. We value your feedback and hope to surpass your expectations in future orders.
WARD470003-960
470003-960EA 174.99 USD InStock
470003-960
Dew Point & Relative Humidity Lab in °C and °F
Models Meteorology Models
This lab helps students discover the edicts of dew point and relative humidity.

• For Grades Seven through 10
• Material for 10 Groups Provided
• Six Separate Labs
• Purpose for Students: to Recognize Effects of Dew Point and Relative Humidity
• Instructions Included
While students may not realize the effects of dew point and relative humidity, these two factors often determine the way in which scientists characterize weather (humid, dry, etc.). In this lab, developed by Earth Science teacher Susan Hoeffner, students compare Celsius and Fahrenheit dew point and relative humidity readings by performing six separate labs (three each using the Celsius and Fahrenheit scales)

After measuring the dew point, students, working in groups of three, use a sling psychrometer to obtain wet and dry-bulb temperature readings and determine the dew point temperature and relative humidity. The psychrometer is designed to stay securely attached. This lab is for grades seven through 10.

Ordering information: This lab includes 10 sling psychrometers, 10 thermometers, and 10 metal cans, a hygrometrical table, relative humidity charts (°C and °F), depression wet-bulb table, and complete instructions with lab activities. Additional sling psychrometers are available separately.

## REVIEWS (1)

Review & Compare Alternatives
We found alternative products that can save you up to  per item-unit.  To compare product details, select up to 3 alternatives below and click Compare Selected. To add items to your basket, enter a quantity and click Add to Basket.

## Terms and Conditions

Ward's Science is Here to Help You
We've made it easy to place your Ward's Science order by providing all the information you need below.

Terms and Conditions of Product Sale
All orders are governed by the Terms and Conditions of Product Sale accessible here. By placing an order, you represent that you have read and agree to the Terms and Conditions of Product Sale.

Shipping Terms
All orders will incur shipping and handling fees added to the total order value. Shipping charges may vary based on the nature of the product, total weight, destination, delivery date, and delivery method. Orders will ship via UPS carrier at current published rates. Shipping costs are estimated at the time of online order. Orders required to ship by motor freight may incur an additional shipping charge. All orders \$24.99 or less (pre-tax) will be subject to an additional \$7.00 handling fee. Our shipping terms are FOB shipping point unless otherwise specified. For more information regarding specific shipping terms for your account, contact your Ward's Science Account Manager. Visit wardsci.com/repfinder to locate a representative in your area.

Order Online and Save!
Receive FREE standard ground shipping on orders of \$250 or more when you place your order online at wardsci.com. Order total must be at least \$250 before tax; total may include live and hazardous materials, however these materials will remain subject to standard shipping charges and fees. Excludes Alaska and Hawaii.

Chemical & Hazardous Shipping Fee
Materials classified as hazardous by the D.O.T. may include, but are not limited to, chemicals, microbiological specimens, or activity kits containing these materials. If your order contains an item classified as hazardous by the D.O.T., a minimum \$27.50 fee will be charged for each order. Orders for chemicals and hazardous materials will only be accepted from educational and research institutions; we will not ship chemicals to individuals. Select chemicals are now available with Poison Packs to enable faster shipping. Previously, these chemicals shipped freight within 7-14 days and incurred a \$70.00 freight shipping charge. Now, added Poison Packs enable your chemicals to ship via UPS to arrive within 3-4 days, eliminating the \$70 freight charge. For a list of chemicals that include Poison Packs, visit wardsci.com/chemicalship .

Live Materials Delivery & Guarantee
All micro life cultures will be delivered to you within two business days when order is placed before 12:00 om EST. (demonstration plates, microalgae, Nostoc excluded). Your specimens or cultures will arrive in good condition or we will send a free replacement as soon as the next day. Requesting a delivery date of Wednesday, Thursday, or Friday ensures healthy delivery of your live specimens.

Bacteria and Pathogens
Shipping pathogens and bacterial cultures to high schools and individuals is prohibited by the Federal Health Service. State or local authorities may require a permit before we can ship pathogens to you. Colleges and universities are permitted to order pathogens and bacterial cultures through an institutional purchase order only.

Product Representation
Every effort is made to ensure accuracy in our product images, descriptions, and pricing prior to publication. However, due to occasional changes made by vendors after date of publication, the physical appearance of items may change or vary in color from what is shown in the catalog. We assure the items you receive will satisfy all product specifications and requirements. Catalog pricing and product availability is subject to change. If a typographical error in pricing should occur, we are not obligated to honor the misprinted price. Please check our website for the most recent updates to product images, descriptions, availability, and pricing.

Your Favorite Items, Always in Stock
Thousands of our best-selling products always stocked and ready when you need them, so you don't have to wait for the items you use most. Items are shipped within 48 hours of ordering when order is received electronically or by phone prior to 1:00 pm EST. In-stock promise and 48-hour shipping time excludes hazardous chemicals and exceptional order quantities which will be made available at lead time. Availability subject to change in the event of natural disaster or forces of nature affecting sourcing, shipping, transportation, or availability of living material required for producing saleable goods. Ward's Science will contact the customer directly to communicate the occurrence of such an event and provide alternate materials when available. Current stock and availability for all products available online on every product page.

Promotional Exclusions
Unless otherwise specified, any item with a price ending in '9' (i.e. \$5.09, \$14.99, \$100.89) is excluded from special offers, discounts, and promotions. Promotional discounts may not be combined with any other offers, discounts or promotions. Offers for free shipping include standard ground shipping only.

Credit & Invoicing
Credit is extended to all educational institutions. Terms are net 30 days from the date of invoice. Teachers' personal orders are always welcome. For more information email wardscs@vwr.com.

Sales Tax
Sales tax (state and local) is based on shipping destination and will be included on your invoice. If you are exempt form sales tax, please provide the proper exemption documentation when placing your order. Exemption must be for the state of your shipping address. Visit us online to download a form at wardsci.com/taxexempt.

100% Satisfaction Guaranteed Returns
We accept product returns for any reason within 60 days of purchase. Items returned must be unused and in original packaging, and not damaged, written on, or defaced in any way. To return an item for refund, replacement, or credit, please email wardscs@vwr.com or call 800-962-2660 for a return authorization number and further instructions for return. Please have your order number readily available so that we can better assist you. In some cases, a restocking fee may apply. Items returned without prior authorization may not be accepted or credited. Items under warranty will be repaired or replaced at our discretion. To ensure the quickest return or replacements, we recommend you inspect all packages immediately upon arrival to ensure your satisfaction. A carrier inspection may be required.