Look Who's Talking

Plants store energy from the sun as sugar through a process called _____

• combustion
• photosynthesis
• respiration
• decomposition

An action that tries to answer a question is called _____

• a conclusion
• a hypothesis
• an investigation
• a problem

When differences are noticed between characteristics of an object, it's called  _____

• a conclusion
• an observation
• an investigation
• a hypothesis

The leaves of a Venus flytrap close when _____

• raindrops fall on them
• an insect walks over them
• the wind blows over them
• sunlight falls on them

Who discovered how the Venus flytrap is able to feel insects on its leaves?

• Charles Darwin
• a lone scientist
• scientists working together
• nobody yet

The leaves of the Venus flytrap will close when the hairs inside it _____

• are wet
• are jiggled once
• are jiggled a few times in a row
• are jiggled by a drop of rain

Which scientist investigated how plants sense the direction of light?

• Charles Lyell
• Charles Darwin
• Gregor Mendel
• Alfred Wallace

In Darwin's experiment on plants, what variable did he change?

• the type of plant
• the amount of water
• the amount of light
• the exposure of the stem

Through investigation, what did Darwin conclude about his plants?

• their leaves have tiny hairs
• the stem tip senses light
• they need dirt to grow
• their roots grow toward water

Scientists do activities called _____ that try to answer questions

• investigations
• hypothesizing
• calisthenics
• brainstorming