Plant Structures
Flower Structures
Photosynthesis
Investigations
100

Photosynthesis happens in this part of the plant.

leaf

100

List one way that plants can be pollinated.

wind, water, animals

100

This gas is released from plants during the process of photosynthesis.

Oxygen

100

Michael wants to know if plants grow better with water or orange juice, so he waters one plant with water and the other with orange juice for two weeks. What is the dependent variable in this investigation?

the growth of the plants

200

Plant roots do these two things for the plant.

1. absorb water and nutrients from the soil

2. anchor the plant

200

This part of the flower produces pollen.

stamen

200

Photosynthesis is the process that allows plants to use energy from the sun to make ________________.

Sugar

200

Tiffany thinks that some plants like the dark better than the light, so she puts one plant in the windowsill and one in the closet for a month. She waters them both with the same amount of water every week. What is the independent variable in this investigation?

amount of light

300

The stem of the plant does these two things.

1. move water and nutrients up the plant

2. provide support

300

These "mini-leaves" protect the flower.

sepal

300

The primary food-producing part of the plant is the _________________.

leaf

300

Vera wants to know if tomato plants will grow faster inside or outside, so she puts one plant on the back porch and the other in her kitchen window. She waters the one inside every day, but does not water the one outside. At the end of the month, the inside plant grows taller than the outside plant. What mistake did she make?

she did not water the outside plant (more than one independent variable)

400

This part of the plant is where new seeds form.

flower
400

This part of the flower receives pollen and moves it down the flower to create new seeds.

stigma
400

These three components are needed for photosynthesis to occur.

carbon dioxide, water, and sunlight
400

Alex wants to find out if plants grow better outside with more sunlight. Where could he place two plants to test his question?

one in the sun, one in the shade