TCI U1 Lesson 1 and Lesson 2

All the living and nonliving things that interact in an area make up a(n) ______.

• nutirent

• environment

• organism

• ecosystem

Tags

NGSS.MS-LS2-1

All animals that live in a pond ecosystem need ___.

• sunlight

• soil

• gills

• air

Tags

NGSS.MS-LS2-1

The study of how living and nonliving things interact with the environment is called

• ecosystems

• organisms

• ecology

• environment

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

A ___________ ecosystem has the largest variety of animals.

• pond

• river

• forest

• rainforest

Tags

NGSS.MS-LS2-5

Name one non-living thing in this ecosystem.

• rabbit

• tree

• grass

• water

Tags

NGSS.MS-LS2-3

Tiny plantlike organisms called _______ are food for many pond animals.

• algea

• cattails

• tadpoles

• water lillies

Tags

NGSS.MS-LS1-6

Scientists that study ecosystems and teach other people about them are called ______.

• chemists

• botanists

• ecologists

• economists

The picture below is a type of model. A model can be used to show the different parts of a system. Scientists use models of nature to study how animals interact with each other and their environment in an ecosystem. How could you BEST improve the model to show how the different parts of this ecosystem interact?

• 1. change the colors of the model

• 1. label the living and nonliving things

• 1. show how deep the water is

• 1. add people to the model

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

You have learned that algae are tiny plant-like organisms that are food for many pond animals. This scientist and his students are exploring the relationship between fish and algae in this pond ecosystem near their school. Which of the following is an example of a scientific question that the students might answer?

• 1. Are the fish happy to live in this pond?

• 1. Do the fish use algae as a food source in this pond?

• 1. Can algae grow at the north or south ends of this pond?

• 1. How do the fish feel about algae in this pond compared to other ponds?

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Rainforest has more plants and species in the ecosystem. The Grand Canyon has less species and plants. What is most likely the cause of the difference?

• 1. differences in the water quality

• 1. differences in the organisms present

• 1. differences in temperature, sunlight, and soil

• 1. differences in how plants carry out photosynthesis

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2