Plant Growth and Matter Absorption

What evidence does the poster provide that the materials that plants need for growth come from air and water?

• The arrows show that there is more matter going into the plant than going out.

• Most of the matter going into the plant is water from the soil and carbon dioxide from the air.

• The plant produces oxygen, which is a component of air.

• Energy from the sun is necessary for the plant to absorb and release matter in different forms.

One of the students who came to see the poster thinks that all the matter absorbed by the plant is used for growth. Which of the following arguments shows that this is not true?

• The plant can use the carbon dioxide to make its own energy.

• Water contributes to the plant’s growth.

• The plant is also using sunlight.

• The plant is releasing oxygen.

Question 3 is not provided with text or options, so it is an open-ended question. Please provide your answer based on the context of the worksheet.

The student knows that plants grow when they have the right resources, but not all resources help them grow. Which choice does NOT provide plants with something that they need for growth?

• water

• sunlight

• soil

• air

A mysterious disease has reduced the number of owls in the ecosystem. What would be a likely result of this disease?

Select the population(s) in the diagram that would be most likely to increase if a mongoose, which preys on snakes, is introduced into this food web.

• Owl

• Lizard

• Mouse

• Plant

Scientists are conducting research on a certain ecosystem and are observing snakes and owls hunting and consuming only mice. If the number of observed snakes increases sharply, what is the most likely initial result?

• The owl population will increase.

• The mouse population will decrease.

• The mouse population will increase.

• The owl population will remain the same.

All the parts of the plant work together. Tiny holes in the leaves take in carbon dioxide and absorb energy from the sun. The roots take in minerals and water from the soil. All of these parts working together create a much needed process for plants that help in the creation of food for the plant. What is this important process?

• precipitation

• respiration

• photosynthesis

• evaporation

We eat food for energy. The energy for any food chain begins with the sun and sunlight. Which of the organisms is a producer that converts sunlight into chemical energy or sugar?

• rabbit

• mushroom

• grass

• fox

Fiona plants some seeds in different pots. All of the pots have the same soil. She gives them the same amount of water and air. Where should Fiona put the plants so that they will make the MOST food for themselves?

• covered by a blanket

• in a closet

• next to a window

• under the teacher’s desk