8th Grade Science Challenge

Froggy Jumps

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Science prep quiz

Nayonnah Williams

United States

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8th Grade Science Challenge


Froggy Jumps 8th Grade Science ChallengeVersion en ligne Science prep quiz par Nayonnah Williams 1 Which process do plants use to convert sunlight into chemical energy? a Fermentation b Photosynthesis c Respiration 2 What is Newton's second law of motion? a Force equals mass times acceleration (F = ma) b Energy equals mass times velocity (E = mv) c For every action, equal and opposite reaction 3 Which best describes a chemical change? a Mixing substances without reaction b Change in shape only c Formation of new substances with different properties 4 In an ecosystem, what role do producers play? a They break down dead matter b They convert energy from the sun into food c They consume consumers only 5 Which organelle is the powerhouse of the cell? a Mitochondrion b Nucleus c Chloroplast 6 What is gravity a measure of? a The speed of falling objects b The energy in motion c The force pulling objects toward each other 7 Which layer of Earth is liquid and creates a protective field? a Outer core (liquid iron) b Mantle c Crust 8 What is the basic unit of electric current? a Ampere (amp) b Volt c Ohm 9 Which gas do plants mainly release during photosynthesis? a Hydrogen b Oxygen c Carbon dioxide 10 Which statement best describes a renewable resource? a It is hard to replace once used b It is only found in oceans c It can be replenished naturally over time