Scientific

What effect does fertilizer have on plant growth? Identify the correct step from the choices below.

If I use fertilizer, then my plant will grow faster because the fertilizer will provide nutrients to the plant. Identify the correct step from the choices below.

The plant height was measured and recorded for two weeks. Identify the correct step from the choices below.

It was concluded that the plant receiving fertilizer grew taller than the plant that did not receive fertilizer. Identify the correct step from the choices below.

Bar graphs were created comparing the height of both plants. Identify the correct step from the choices below.

The plant study was published in a scientific journal. Identify the correct step from the choices below.

Christopher set up six tanks with equal volumes of 20 ℃ water. Three of the tanks contained water with a high salt content of 30 parts per thousand and three contained water with no salt. Christopher added an equal amount of green algae to each tank. He allowed the algae to grow in the tanks for two weeks. Then, he measured the amount of algae in each tank. Identify the question that Christopher’s experiment can best answer.

When baking soda and vinegar are combined, they create bubbles of carbon dioxide gas. Kurt combined baking soda and vinegar in 12 different beakers. In each beaker, Kurt placed two tablespoons of baking soda and one tablespoon of vinegar. He used rice vinegar in four of the beakers, white vinegar in four of the beakers, and apple cider vinegar in four of the beakers. Kurt watched the beakers and recorded the amount of time that each mixture bubbled. Identify the question that Kurt’s experiment can best answer.