SCIENCE KNOWLEDGE COMPETITION

What is the body system that sends and recieves electrical signals from the brain?

• Skeletal System
• Nervous System
• Muscular System
• Digestive System

What system breaks food down into energy for the body?

• Stomach
• Digestive System
• Respiratory system
• Lungs

Which of the following is in the correct order from smallest to largest?

• tissue-organ-system-cell
• cell-organ-tissue-system
• System-tissue-cell-organ
• cell-tissue-organ-system

Liquid water changes into water vapor.

• condensation
• evaporation
• sublimation
• freezing

A tool that measures temperature is a ________________.

• cloud
• wind sock
• thermometer
• wind

Which of the following is a learned behavior?

• Having blue eyes
• rolling your tongue
• having curly hair 
• playing the piano

How many bones does an adult human have?

• 300
• 306
• 206
• 602

What causes ocean water to evaporate in the water cycle?

• energy from the sun
• energy from ocean waves
• energy from earth's rotation
• energy from earth's moon

Timothy is a fifth grade boy with brown hair. Neither of Timothy’s parents has brown hair. Which is the most likely reason Timothy has brown hair?

• Brown is Timothy’s favorite color.
• One of Timothy’s grandparents has brown hair
• Timothy’s mother wanted him to have brown hair.
• Most of the boys in Timothy’s class have brown hair.

A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds