This article provides an overview of icebergs' formation and characteristics and the hazards associated with icebergs.

Investigate a flower's power of marketing by making an imitation flower that successfully signals a bee (or other pollinator of your choice) to visit. Try to determine what characteristics will attract a pollinator to your flower. Also available as an online game.

In this online math game from Cyberchase, learners are challenged to fill containers with water using three different sized pots. Learners select the combination of pots that will fill the containers with the fewest number of pours, without spilling over. This online activity could be used as an introduction to a hands-on measuring activity, or as a cleaner alternative to a hands-on measuring activity.

In this activity, learners explore the size and scale of dinosaurs. Learners listen to "The Littlest Dinosaurs" by Bernard Most to learn about the different sizes of dinosaurs. Then, learners create a chart of measurements that compare the sizes of the body parts of a T. rex, Triceratops, the learner, and their partner. Learners also convert the measurements into centimeters and meters. This activity is featured on pp. 20-21 of the "Dinosphere" unit of study for K-2 learners.

This is an activity (on page 2 of the PDF) about surface area to volume ratio. Learners will bake sugar cookies, testing how much colored sugar is rolled up by 1 large ball of dough vs. an equal amount of dough divided into 20-25 small balls. Surface area to volume ratio is an important concept in nanotechnology because it helps explain why the same substance can behave differently when broken into nanosized pieces. Also relates to linked video, DragonflyTV Nano: Surface Area.

This tutorial talks about how the distance to the stars was determined. It begins with the first attempt made by Aristarchus and the subsequent wrong answers until final understanding was reached by the scientific community.

In this activity, learners explore how distance can affect the way we perceive the size of an object. It also introduces learners to solar eclipses as well as the Sun and Moon's sizes and distances from Earth. This is a very simple activity using balls as models, making it accessible even for young learners. This resource also contains hints on how to use familiar objects to help learners visualize the sizes and distances of the Sun, Moon and Earth.

Students will use various objects in the classroom to experiment with nonstandard measurement. They will make estimates and test them out. Then, working in pairs or small groups, students will use a ruler or a measuring tape to become familiar with how to use these tools for standard linear measurement. The purpose of this activity is to practice making standard and non-standard measurement and to learn the purpose of making linear measurements and how to apply them to scientific investigations. Students will learn how to make measurements, both nonstandard and standard (with a ruler). They will test their estimates and record their results.

In this "Sid the Science Kid" activity, learners use their bodies to measure a room. Instead of inches or feet, how many kids does it take to measure the length of a room? This activity includes a "Sid the Science Kid" video showing how to conduct the investigation.

In this activity, learners "go fishing," then practice ruler use and size/pattern comparison with the animals they catch.

In this activity related to Archimedes' Principle, learners use water displacement to compare the volume of an expanded gummy bear with a gummy bear in its original condition. This activity shows an important scaling phenomenon: when you increase the size of an object, volume grows much faster than height or surface area. This resource contains information about how this phenomenon affects animals both large and small.

In this activity, learners explore a scale by comparing objects, which look similar but have different weights. Learners predict and then measure the weights of various objects using a scale. Learners will discover that size does not determine weight. This resource includes discussion questions for learners.

In this lesson, learners cut paper into very small pieces to explore the small size of quarks, the smallest thing we know of on Earth. Learners attempt to cut a 28-cm-long by 1-cm-wide strip of paper in half, as many times as possible. Use this activity to introduce learners to quarks and how particle physicists study and manipulate super small matter.

This math activity uses stars, jars, and scoops to help learners build their estimation and volume skills. As you play, estimate how many scoops of stars it will take to fill a variety of jars. This activity helps learners estimate, predict, reason, strategize, measure volumes, multiply, divide and practice fractions. The activity guide contains a material list, sample questions to ask, literary connections, extensions, and alignment to local and national standards.

In this online interactive, learners create simple animations. Learners select backgrounds, characters, character placement, and character size. Learners then position their character in up to 5 key frame positions and take a picture of each. The computer fills "in-between" those key frames, creating a smooth animation. This is a simplified version of the sort of computer animation software professional animators use to create animations.

In this activity on page 3 of the PDF, learners visualize the relative size and structural differences between microbes that have the potential to cause disease. Learners work in groups and use simple materials to build scale models of different types of viruses. This activity can be preceded by "Line 'em up!", the first activity in this resource, located on page 1 of the PDF.

In this activity, learners explore the size and scale of dinosaurs. Learners listen to "Dinosaurs, Dinosaurs" by Byron Barton to understand some background information about dinosaurs. Then, learners use pipe cleaners or wire to create skeletal dinosaur models to scale based on reference drawings. As a group, learners then make a bar graph of the sizes of the dinosaurs. This activity is featured on page 19 of the "Dinosphere" unit of study for K-2 learners.

In this quick activity about size and scale (on page 2 of the PDF), each learner will be given an image of an object and communicate with other members of the group to arrange the objects they are holding in order of size (largest objects on one end and smallest on the other). Scale ladders help kids recognize the order of magnitude of some benchmark objects and correctly arrange them in order of size. This exercise also increases familiarity with the metric system, the universal language used by scientists, and some common prefixes such as "micro" and "nano." Also relates to linked video, DragonflyTV Nano: What's Nano?

In this activity, learners use two different techniques to estimate how many little things fit into one bigger thing. Learners estimate the number of peas that will fit into something the size of a small paper cup. Learners estimate volume in part A and estimate weight in part B. Learners can calculate the number of peas that could fit in a space the size of a human brain by following the procedures outlined in part C. This lesson can be combined with viewing the "Eat your Peas" video on the Quarked website.

In this outdoor activity and game, learners collect and sort leaf samples to determine how many types of plants grow in the activity site. Learners are introduced to the concept of "species" and start to see differences and similarities between the plants around them. Included with the activity instructions is the "Leaf Characteristic Game," as well as ideas for going further with leafy art projects.