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Science Launch G3 / Week 05 / Friday
5/6
Week 05 · Life Cycles

Friday

Comparing life cycles
// Born, grow, make young, die
⏱ about 15 min

Friday: Comparing Life Cycles

Rocket lays out drawings of a bean, a butterfly, a frog and a chicken. "They are all so different!" he says.

Raven lines them up. "What do you notice that they all share?"

Nova points her light at the first and last stage of each. "Look for the four parts every cycle has," she says.

Different, but the same pattern

Each living thing has its own life cycle.

A monarch changes shape completely. A grasshopper only grows bigger.

A frog moves from water to land. A bean plant makes flowers and seeds.

But every one is born, grows, reproduces and dies.

Living thingStarts asYoung stageAdult
Bean plantseedseedlingplant with flowers
Monarcheggcaterpillar, then chrysalisbutterfly
Frogeggtadpolefrog
Grasshoppereggnymphgrasshopper
USE THE TABLE
  • Read the question.
  • Tap your answer.
Which living thing in the table starts as a seed?
What do all four life cycles share?
ORDER THE FROG LIFE CYCLE
  • ?adult frog
  • ?tadpole with gills and a tail
  • ?egg
  • ?tadpole with legs
WHY THIS EXERCISEA frog starts as an egg, becomes a tadpole, grows legs, then becomes a frog.
To make new young is to ____.
A seed starting to sprout is said to ____.

Spot the stage

Scientists can tell the stage of a living thing by looking closely.

A caterpillar is a larva. A chrysalis is a pupa.

A tadpole with legs is partway to becoming a frog.

A plant with flowers is ready to reproduce.

NAME THE STAGE
  • Read the question.
  • Tap your answer.
You see a green chrysalis hanging on a leaf. Which stage is it?
You see a small grasshopper that looks like a tiny adult. Which stage is it?
A plant has new seeds in pods. Which life cycle part is that?
Week reviewTrue or false?
A monarch changes shape completely as it grows.?
A grasshopper changes shape completely as it grows.?
A frog starts life in water.?
A bean plant starts as a seed.?
WHY THIS EXERCISEMonarchs change completely, grasshoppers just grow, frogs start in water and beans start as seeds.
A caterpillar is the larva of what insect? Type one word.
WHY THIS EXERCISEA caterpillar is the larva stage of a butterfly.
Try it
Check your seed bag today.
Look for the root, the shoot and the seed coat.
Which life cycle part are your seeds in now?

Super job! Check your seeds again. Tomorrow is Launch Lab, where you make a life cycle wheel.

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