"Scientists and farmers use tools like telescopes, underwater sensors, and soil chips to collect careful information before making decisions."
Ask the class before watching:
"What is one tool you have used to observe or measure something, and what did it help you learn?"
A huge group of stars, gas, dust, and planets held together by gravity.
The students studied light from a faraway galaxy.
A tool that detects or measures something, such as sound, movement, or moisture.
Ocean sensors can help researchers learn about whale routes.
A path or way that someone or something travels.
Researchers used sensors to learn how whale routes may shift over time.
A small amount of water in something, like soil.
A tiny chip may help farmers measure moisture where plant roots are growing.
Have students answer these questions after watching the episode.