🔬 2nd Grade Science · Unit 4

Earth's Land and Water

20 short narrated lessons in 4 chapters, each with pictures, a quiz with a hint and a second try, and an explanation for every answer.

Standards: 2-ESS1-1 2-ESS2-1 K-2-ETS1-1 K-2-ETS1-2 K-2-ETS1-3 2-ESS2-2 2-ESS2-3

2nd Grade Science · 4 units

What your child will learn

Slow ChangesExplain that some changes to the land, like rivers carving canyons, take a very long time.
Rocks Break DownDescribe how wind, water and ice slowly break big rocks into smaller pieces and sand.
Fast ChangesDescribe changes to the land that happen quickly, such as a volcano making new land or a flood moving soil.
Comparing Fast and SlowSort changes to the land into those that happen quickly and those that take a long time.
Fast and Slow Changes Review ReviewReview how Earth's land changes both quickly and very slowly.

Water Moves SoilExplain how rain and rivers carry soil away, which is called erosion.
Wind Moves SandDescribe how wind blows sand and soil from one place to another.
Ways to Hold the LandDescribe solutions like plants, walls and fences that slow wind and water from moving land.
Test Two SolutionsCompare two ways to stop a sand hill from washing away and decide which works better.
Protecting Land Review ReviewReview how people design and compare solutions to slow erosion by wind and water.

What Is a Map?Explain that a map is a flat drawing that shows where things are.
LandformsIdentify landforms such as mountains, hills, valleys and plains.
Bodies of WaterIdentify bodies of water such as oceans, lakes, rivers and ponds.
Make a Model MapMake a simple map that shows the shapes and kinds of land and water in an area.
Maps Review ReviewReview how maps and models show the shapes and kinds of land and water.

Salty OceansExplain that most of Earth's water is salty water in the oceans.
Fresh WaterIdentify lakes, rivers and ponds as places with fresh water that people and animals drink.
Frozen WaterDescribe how water is found as solid ice and snow in glaciers and near the poles.
Liquid and Solid WaterExplain that water on Earth can be found as a liquid or a solid depending on how cold it is.
Water on Earth Review ReviewReview where water is found on Earth and whether it is solid or liquid there.

From the lesson “Slow Changes”

What carved the deep canyon?

Show the answer

[object Object]. A flowing river carries sand and stones that slowly wear the rock away.

Hint kids see after a wrong try: “Think about what flows at the bottom of a canyon.”

← Plants and Animals Together All 2nd Grade Science units

Narrated lessons, pictures and quizzes for every grade from K to 8. Works offline.