WAVES - ECHOES AND ULTRASOUND
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STUDENTS LEARN ABOUT WHAT ECHOES ARE, ALSO WHAT ULTRASOUND IS AND HOW IT IS USED, BABY SCANNING, SONAR, FISH FINDERS AND DOLPHINS. THEY PRACTISE CALCULATING DISTANCES FROM ECHOES. THE LESSON INCULDES LITERACY, GAP FILL, VIDEO LINKS AND ACTIVITIES WITH QUESTIONS AND ANSWERS INCLUDED.