Science olympiad grade 3 Worksheet-7
(A) red clay soil (B) sandy pond soil
(C) dark forest soil (D) bedrock
(A) sandy soil (B) clay (C) rocks (D) plants
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Science olympiad grade 3 Worksheet-8
(A) measuring a wave (B) Absorbtion
(C) reflection (D) amplification
(A) sound amplification (B) sound discrimination
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