Plant Growth and Light Quiz

Seed has a part that protects it, called….

• scar

• embryo

• seed coat

• cotyledons

Seeds also have a mark left on their seed coat where they were connected to the fruit, called….

• scar

• embryo

• seed coat

• cotyledons

Most seeds need ..., ... and ... to germinate

• water, soil and air

• water, soil and light

• water, warmth and air

• soil, light and warmth

Most seeds don't need ... to germinate.

• air

• light

• water

• warmth

Why do plants need air (carbon dioxide) to grow?

• Plants use carbon dioxide to keep firm

• Plants use carbon dioxide to make food

• Plants use carbon dioxide to reproduce

• Plants use carbon dioxide to transport food to different parts of the plants

Which part of the seed grows first?

• Flowers

• Leaves

• Stem

• Root

Which condition does the plant in the picture is missing for growth?

• Air

• Light

• Water

• Warmth

Which of the following is true about plant growth?

• Plants can grow without Sun's energy

• Plants cannot grow without warmth

• Plants can grow without water

• Plants can grow without air

The process of a plant using light to change carbon dioxide and water into glucose for food is....

• Life cycle

• germination

• plant growth

• photosynthesis

A student places three identical plants in the same type of containers, uses the same type of soil and the same amount of water for each plant. This student places the three plants in three different locations. Plant A is placed in a sunny area, Plant B is placed in a shaded location, and Plant C is placed in the dark room. Each day this student records the growth of each plant. What is the different variable in this investigation?

• The soil

• The amount of light

• The amount of water

• The growth of each plant