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Science Launch G2 / Week 10 / Wednesday
3/6
Week 10 · Hold the Land

Wednesday

Investigation: Save the hill
// Slow wind and water from changing land
⏱ about 15 min

Wednesday: Save the hill

Rocket builds three small soil hills in pans.

"One stays bare," he says. "Two get a design to protect them."

Raven covers one hill with leaves. Rocket builds a stick wall around another.

Nova checks the cups. "Hint: use the same water on every hill."

"What will we notice?" Raven wonders.

Your investigation

You will compare two designs that protect soil from water.

  • three baking pans or plastic trays
  • soil or sand
  • leaves or grass clippings
  • craft sticks or small twigs
  • three cups of water, all the same size
Safety first
Do this outside or on a big towel.
Wash your hands after touching soil.
Nothing goes in your mouth.
  1. Make a small, damp soil hill at one end of each pan.
  2. Leave hill one bare.
  3. Cover hill two with leaves or grass.
  4. Push sticks into the soil around hill three, like a wall.
  5. Pour one cup of water slowly on top of each hill.
  6. Look at how much soil moved in each pan.
MAKE A PREDICTION
  • Read the question.
  • Tap your answer.
Which hill do you predict will lose the most soil?
Why does each hill get the same cup of water?
HillSoil that moved: a lot, some or a little?StrengthWeakness
bare
leaf cover
stick wall
After testingTrue or false?
We compared two designs and a bare hill.?
Each hill got a different amount of water.?
WHY THIS EXERCISESame water means we can compare the designs.
For a grown-up
Help your child pour slowly and evenly.
Ask what each design did well and not so well.
HILL TEST CHECK
  • Read the question.
  • Tap your answer.
How many hills did you build?
What covered hill two?
What is a design?
How should you pour the water?
SentenceTrue or false?
Hill one stays bare.?
Sticks make a wall around hill three.?
Soil can go in your mouth.?
WHY THIS EXERCISECareful steps keep the test fair and safe.

Word Spot: miss, idea, enough

Here are new sight words.

Look at each word. Say it. Spell it.

Miss: M-I-S-S.

Idea: I-D-E-A.

Enough: E-N-O-U-G-H.

FIND THE WORD
  • Listen to the word.
  • Tap it.
Find the word you hear.
Find the word you hear.
Find the word you hear.
Find the word you hear.
FILL THE GAP
  • Listen to the sentence.
  • Tap the missing word.
I ___ my friend.
That is a good ___.
Do we have ___ chairs?

Engineering at its best! Tomorrow we learn how people slow the wind.

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