Slow Earth Events - 2nd Grade Science

Which option is a reliable source for facts about slow Earth changes: textbook, rumor, or guessing?

Textbook. Textbooks contain verified scientific information.
When two sources disagree, what is the best next step to gather accurate information?

Check a third reliable source for the same fact. Multiple sources help verify conflicting information.
What is the first step when gathering information from sources about a slow Earth event?

Ask a clear question about the event. Clear questions guide focused research and learning.
Which agent of erosion can move sand and make dunes: wind, water, ice, or gravity?

Wind. Wind lifts and carries loose sand particles.
Which process breaks rock, and which process moves the pieces: weathering or erosion?

Weathering breaks rock; erosion moves the pieces. Weathering creates pieces; erosion transports them elsewhere.
Which option is evidence of deposition: a sandbar forming, or a rock cracking?

A sandbar forming. Sand deposits build up to create new land features.
Which statement is a fact from a source, not an opinion: "Wind can move sand" or "Wind is scary"?

"Wind can move sand". Facts can be proven; opinions express feelings.
Which source is best for learning the meaning of a science word: dictionary, map, or stopwatch?

Dictionary. Dictionaries define scientific terms clearly.
What is a slow Earth event (slow change) in Earth materials or landforms?

A change to Earth that happens over a long time, not all at once. Slow changes take many years, unlike quick events like earthquakes.
What slow Earth process can make a rock crack into smaller pieces over time?

Weathering. Temperature changes and water cause rocks to break apart.
What is a glacier in Earth science (as a cause of slow change)?

A large, moving mass of ice that slowly shapes land. Glaciers carve valleys and move rocks as they flow.
Which question best fits the skill of gathering information about slow Earth events?

How has this landform changed over many years. This focuses on gradual changes over extended time.
Which question best checks if a source is about slow Earth events: "Does it describe changes over many years?"

"Does it describe changes over many years?". Slow events require extended time periods to occur.
What tool helps you gather information by showing Earth features from above?

A satellite image. Shows Earth's surface from space for better perspective.
Which agent of erosion is described by "ice slowly moves and pushes rocks and soil"?

Ice (glaciers). Glaciers are massive ice sheets that move very slowly.
Which sentence is a fact from a source about slow changes: "Rivers carry sediment" or "Rivers are the best"?

"Rivers carry sediment.". Facts can be proven; opinions express preferences.
Which agent of erosion can carve valleys and carry sediment in rivers: wind, water, ice, or gravity?

Water. Flowing water is Earth's main erosion agent.
Which option is an example of deposition: a sandbar forming or a cliff breaking apart?

A sandbar forming. Sand accumulates where water slows, forming new land.
What is deposition in erosion and weathering?

When moved soil and rock are dropped in a new place. Materials settle after being transported by erosion.
Identify the best note to write from a source about erosion: a fact, an opinion, or a joke?

A fact. Facts are verifiable information, not personal views.
Which tool best helps you gather information from a book page about erosion: headings and captions or the page number only?

Headings and captions. These features organize and explain important information.
What should you do to check if information about a slow Earth event is trustworthy?

Use more than one reliable source. Multiple sources confirm accuracy and prevent errors.
Which source is best for checking what happened to a hillside over years: time-series photos, a menu, or a song?

Time-series photos. Photos taken over time reveal gradual changes.
Which agent of erosion is described by "moving water carries soil downhill"?

Water. Moving water is a major force that transports soil.
What should you record when taking notes from a source about a slow Earth event?

Key facts and the source title or author. Recording sources helps verify and credit information.
Identify the best evidence of slow change: a photo taken today or photos taken years apart of the same hill.

Photos taken years apart of the same hill. Comparing old and new photos shows gradual changes.
What is sediment?

Small pieces of rock, sand, or soil. These particles result from weathering and erosion.
What is a simple way to gather information from a book about slow Earth changes?

Use headings, pictures, and captions to find key facts. These text features highlight important information.
What slow Earth process can make a riverbank wear away over time?

Erosion. Water flow gradually removes soil and rock from banks.
Which option best describes weathering: breaking rocks into smaller pieces or moving sand by wind?

Breaking rocks into smaller pieces. Weathering breaks down rocks; wind moving sand is erosion.
What is weathering (a slow Earth process) in simple terms?

The breaking of rocks into smaller pieces. This process slowly breaks down rocks through natural forces.
Identify the slow Earth event described: "A river makes a valley wider over many years."

Erosion by moving water. Rivers gradually carve valleys through continuous erosion.
What is a map used for when gathering information about slow Earth events?

To show where landforms and changes are located. Maps help visualize geographic positions and patterns.
Which agent of erosion is described by "waves wear away a shoreline over many years"?

Ocean waves (water). Waves constantly hit shores, gradually wearing them down.
Which option is a reliable source for slow Earth events: a science book or an advertisement?

A science book. Science books contain factual information; ads may mislead.
What is erosion (a slow Earth process) in simple terms?

The movement of rock and soil from one place to another. Natural forces like water and wind carry materials away.
Which source is best for seeing where a river flows: map, poem, or recipe?

Map. Maps show geographic features and water paths.
What is a landform? (Use a definition that fits 2nd grade science.)

A natural feature of Earth's surface, like a hill or valley. These are natural shapes formed on Earth's surface.
What is a slow Earth event (slow change) that happens over many years?

A change to Earth that takes a long time, often many years. These changes happen gradually over extended periods.
What is the best way to record information from sources about slow Earth events?

Write brief notes with the source title and the main fact. Recording sources ensures facts can be verified later.
Which option is an example of weathering: a rock cracking from freezing water or a landslide moving soil?

A rock cracking from freezing water. Water expands when frozen, breaking rocks apart.
Which agent of erosion is described by "wind blows sand and dust to new places"?

Wind. Wind lifts and carries loose particles to new locations.
Which option best shows a slow change over time: one photo, or two photos from different years?

Two photos from different years. Comparing photos reveals changes between time periods.
What is a slow Earth event (a change to Earth that happens over a long time)?

A change to Earth that takes many years or longer. Slow changes happen gradually over extended periods, not quickly.
Which option is a primary source: a photograph of a coastline from $1990$ , or a story someone heard?

A photograph of a coastline from $1990$ . Photos are direct evidence from a specific time.
Which source is most useful for finding facts about erosion: a textbook diagram or a fictional story?

A textbook diagram. Diagrams show factual processes; fiction isn't factual.
What is deposition (when moved soil or rock is dropped in a new place)?

The dropping of moved soil or rock in a new place. Materials settle after being transported by erosion.
Which option is an example of erosion: a river carrying mud or a rock breaking into pieces?

A river carrying mud. Rivers transport sediment downstream through erosion.
Which option is most likely to cause slow erosion: wind, a quick explosion, or a sudden crash?

Wind. Wind gradually moves particles over long periods.
Which landform is commonly made by erosion from a river: canyon, volcano, or lightning?

Canyon. Rivers slowly carve deep valleys through rock over time.
What is erosion (the process that moves soil and rock from one place to another)?

The movement of soil and rock to new places. Erosion transports materials; weathering breaks them down.

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