Featured in PASCO’s Elementary School Science Teacher Guide

Elementary School Science Teacher Guide


Features 29 inquiry based labs designed for elementary students and coordinated with the standards for life, earth and physical sciences.

Observing Clouds

Lab Summary

Use a weather sensor to show that clouds in the sky have properties that can be observed and described, and that students associate cloud formation with specific weather conditions such as temperature and humidity.


To understand this content, students:

  • Identify types of clouds in the sky using standard pictures of clouds.
  • Use a compass and learn direction.
  • Monitor temperature and humidity for three days.
  • Relate changes in weather to the formation of clouds.

Sensors / Equipment Used:

PASPORT 6-in-1 Weather Sensor


Measures barometric pressure, relative altitude, absolute and relative humidity, dew point, and temperature. For use with PASPORT Interfaces.

Materials Used:

Cloud Types handout 
PASCO Cloud Finder handout 
Paper fastener (brad) 
Weather Journal handout 
Tagboard or card stock, 14-cm × 14-cm 
Ribbon, 12–15 cm long

For Teacher Demonstration:
Glass canning jar, 1-quart 
Plastic wrap and rubber band 
Posters or pictures of cloud types, in color 
Turkey baster 
Water, hot - 20 mL
Water, ice - 50 mL
Wooden stick matches 

The Associated Bundle:

Elementary School Science Standard Sensor Bundle


This bundle contains the probeware needed to perform all 25 lab activities in the Elementary School Introductory Science Experiments.

Interface Required

This experiment may require software and an interface for data collection.