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How Big Were the Dinosaurs?
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In this activity (located on page 4 of PDF), learners gain insight into the actual size of dinosaurs and practice making estimations and measurements.

Using a Simple Astrolabe
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In this activity, learners use an astrolabe to measure the altitude of objects. Learners will first practice taking measurements by measuring the altitude of trees and buildings.
Pace-Off!
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In this math activity, learners use non-standard measurement (paces) to find the distance from one point to another. Learners practice estimating and measuring distances .

Jump Like a Frog
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In this math activity, learners jump and measure how far they can jump on different surfaces using different jumping techniques.

Metric Capers
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In this outdoor activity, learners measure familiar objects in nature to practice working with the metric system.

The Shadow Knows I
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In this activity, learners will measure the length of their shadow from the Sun and compare it three to four months later.

Stepping Out: Hop, Skip, Jump
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In this activity, learners explore and experiment how we can use our bodies everyday to get from one place to another.

Experiencing Parallax With Your Thumb
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In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system.
Growing Plants: Track Their Growth
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In this activity, learners will be working with predictions with a time frame of one week, or longer. Start by planting seedlings.

Globe at Night
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In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.
Is It Possible: Estimating Measurement
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In this activity, learners will decide together on a question about how far, long or high the group could reach together.
What Causes Rainbows?
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In this activity, learners explore how and why rainbows form by creating rainbows in a variety of ways using simple materials. Learners create rainbows indoors and outdoors.

Make a Snake String & Snake Survey
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In this activity, learners will construct a measuring device (snake "string") to improve their observation skills.

Paper Cup Anemometer
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In this meteorological activity, learners get to build their very own anemometer (instrument for measuring wind speed) using a paper cup.

It's the "Rain," Man
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In this weather forecasting activity, learners use common materials to construct a rain gauge and measure daily, monthly, and yearly rainfall.

The Size and Distance of the Planets
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In this activity, learners investigate the concepts of relative size and distance by creating a basic model of the solar system.

Big Sun, Small Moon
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Learners will explore the concept of angular distance, and investigate why the moon appears to be the same size as the sun during a solar eclipse, despite the sun being much larger.

Finding the Size of the Sun and Moon
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In this activity, learners build a simple pinhole viewer. They use this apparatus to project images from a variety of light sources, including a candle, the Sun, and the Moon.

Plants Around a Building
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In this outdoor activity, learners discover how the environment around a building affects the growth of plants.

Shadow Play
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In this three part activity, learners explore and experiment with shadows to learn about the Sun's relative motion in the sky.