Earth and Space Systems, Daily and Seasonal Changes: the Sun as a…
Earth and Space Systems, Daily and Seasonal Changes: the Sun as a source of light and heat, and changes students can observe over a day.
The Ontario Science and Technology, Grades 1–8 outcome for Grade 1 says: “Earth and Space Systems, Daily and Seasonal Changes: the Sun as a source of light and heat, and changes students can observe over a day.” This Fieldbook unit teaches it hands-on, with everyday materials and a printable teacher guide and student sheet for every lesson.
Light and Shadows Grades K–2
Why does my shadow follow me, and why is it so long in the morning? Young scientists chase their shadows, track the Sun across the day and test which things let light through.
- Why does my shadow follow me? 30–40 min
Children go outside on a sunny day and try everything to escape their shadow: running, jumping, spinning and hiding in the shade. They find out that a shadow is the dark shape where their body blocks the sunlight, so it has to go wherever they go.
- Why is my shadow long in the morning? About 40 min in total, split across one sunny day: 15 min in the morning, two 4 min visits outside, and 15 min at the end of the day
Pairs stand a bottle on a chalk X and trace its shadow three times in one sunny day, measuring each shadow with a piece of yarn. Back inside, a flashlight held low and then high shows them why shadows are long when the Sun is low in the sky and short when it is high.
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