Our World: Plants in Space

1.What is the name of the food-making process that happens in the green parts of a plant? 1 pt

• Photosynthesis
• Respiration
• Germination
• Evaporation

2.Plants can make their own food using light, water, and carbon dioxide. 1 pt

• True
• False

3.Which special green pigment in plants absorbs light energy? 1 pt

• Glucose
• Chlorophyll
• Carbon dioxide
• Spectrum

4.Plants grow best under regular light bulbs because they give off all the colors of the spectrum. 1 pt

• True
• False

5.Which two colors of light do plants need most to grow well? 1 pt

• Green and yellow
• Red and blue
• Orange and purple
• White and pink

6.What type of light bulb does Dr. Goens say works best for growing plants indoors? 1 pt

• Regular incandescent bulbs
• Fluorescent bulbs
• Streetlight bulbs
• Candle light

7.When plants are grown under only red and blue light, they appear black. 1 pt

• True
• False

8.What are the reactions called when a plant grows or moves in response to something in its environment? 1 pt

• Photosynthesis
• Stimuli
• Tropisms
• Spectrums

9.Astronauts orbiting Earth get 90 minutes of continuous daylight every orbit. 1 pt

• True
• False

10.Why does NASA study how plants grow in space? 1 pt

• To make spacecraft look more colorful
• So astronauts can grow their own food on long missions
• To test if plants can breathe in zero gravity
• To study how roots absorb electricity