Lesson Quizag 27Grade 4 Assessment Guide

Name ______Date ______

How Can We Observe a
Plant’s Life Cycle?

Lesson QuizAG 27Grade 4 • Assessment Guide

Name ______Date ______

Devlin is studying germination for a science project. He uses bean seeds to demonstrate what seeds need to germinate. What is one thing Devlin can do to show whether bean seeds need soil to germinate?

He can germinate a bean seed in soil and remove it to see if it grows.

He can plant a bean seed in poor soil and see how long it takes to germinate.

He can place a bean seed in a plastic bag with soil and water to see if it germinates.

He can place a bean seed in a plastic bag with a moist paper towel and water to see if it germinates.

Mrs. Anticoli’s students are testing conditions for germinating bean seeds. Which is the best way for them to study how the amount of water affects the germination of the bean seeds?

give the seeds large amounts of water and watch to see if any of them will germinate

give the seeds no water and wait to see if any of the seeds will germinate

give the seeds different amounts of water and record when each seed germinates

give each seed the same amount of water and watch to see which one germinates first

Jared plants four bean seeds. He waters the first seed twice a day, the second seed once a day, the third seed every other day, and the fourth seed not at all. What is the tested variable in this investigation?

the amount of water

the kind of seed

the germination rate

the time of day the seed is watered

Gracie is testing the effect of fertilizers in plant growth. Which of the following does she need to have a controlled experiment?

a plant that gets no fertilizer

seeds of different types of plants

plants that get different amounts of water

a plant that is fertilized halfway through the experiment

Marshall planted two bean seeds in the same kind of soil. He kept them at equal temperatures and gave them the same amount of water, but exposed them to different amounts of sunlight. What is Marshall trying to demonstrate?

that plants will grow when watered

that soil affects plant growth rate

that temperature affects plant growth rate

that sunlight affects plant growth rate

Lesson QuizAG 26Grade 4 • Assessment Guide