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Chemistry - Science
Reaction of alkene with hydrogen halide (H-Cl or H-Br).The mechanism reaction steps involve formation of carbocation and formation of haloalkane.
Physical Science - Science
Travel with Jerry-match every vehicle to its right place to move.
Weather and Seasons - Science
อากาศและฤดูกาล
Earth Science - Science
Read about earthquakes and the seismograph. Answer the questions as you go.
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Biology - Science
Genotypes & Phenotypes Video Notes with video
Protein Synthesis Video notes with video & quiz
Biology Milestones Prep - Reproduction Cloze Reading
Newton's 3rd Law of Motion Video Notes
Environmental Science - Science
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Life Science - Science
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Match the Pollutant to its Effects.
Introduction to the Skeletal System with a lesson on bones.
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Physics - Science
Practice these questions
Space Science - Science
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MEASUREMENTS SI BASE UNITS
Identification of properties of matter
answer all questions