Froggy Jumps Brainiac BattleOnline version Step into the vast universe of STEM with the STEM Galaxy Challenge! Explore the stars of science, technology, engineering, and mathematics as you navigate through questions that will test your knowledge and skills. Journey through the galaxies of learning and see if you can reach the farthest corners of the STEM galaxy! by Pifly PiFly 1 Which of the following is an example of a renewable energy source? a Solar Power b Coal c Nuclear Power 2 What is the process by which plants make their own food using sunlight? a Transpiration b Photosynthesis c Respiration 3 What is the SI unit of electric current? a Watt b Volt c Ampere 4 Which of the following is a simple machine? a Battery b Lever c Spring 5 What is the largest organ in the human body? a Skin b Liver c Heart 6 What is the chemical symbol for gold? a Go b Ag c Au 7 Which of the following is an example of a chemical change? a Rusting iron b Melting ice c Boiling water 8 What is the formula for calculating speed? a Speed = Distance x Time b Speed = Distance ÷ Time c Speed = Time + Distance 9 What is the process by which plants release water vapor into the atmosphere? a Transpiration b Precipitation c Condensation 10 Which of the following is a characteristic of a parallelogram? a All sides are equal b All angles are right angles c Opposite sides are parallel