Worksheets3rd - Structures of Life
Total questions: 12
Worksheet time: 7mins
This drawing shows the stages of corn plant growth. Which sentence is the best advice about when to collect corn seeds to plant the following year?
In May, because that is the best time to plant.
In July, because that is when the roots get strong.
In August, because that is when the leaves are biggest.
In September, because that is when the flower is finished growing.
Scientists found 71-million-year-old fossils of dinosaurs in rocks in Antarctica. This evidence suggests that _____.
dinosaurs can survive in extremely cold places
someone has been moving fossils around to fool scientists
the climate in Antarctica was warmer when dinosaurs lived there
dinosaurs wandered there when the ocean was frozen, and died from the cold
What is the job of the leaf?
The leaf's job is to cook hamburgers.
The seeds job is to navigate water throughout the plant.
The leaf protects the seed from falling down.
The leaf makes food for the plant.
What is gravity?
Gravity is energy that causes warmth.
Gravity is a force that pushes objects to the Earth.
Gravity is a force that pulls objects to the Earth.
Gravity is a force that pulls objects up to the sky.
When a seed begins to grow, the process is called__________.
germination
rooting
planting
wilting
A caterpillar looks different from a butterfly. Which statement explains how the offspring can look so different from the parent?
all offsprings look different from their parents
the caterpillar will become a butterfly as it continues through the life cycles
when the caterpillar lays eggs, they will hatch into butterflies
butterflies are different form oneanother and their parents
A rock was found in the desert with a fish fossil. What can scientist learn from this fossil?
a lake was once in the area
some fish lived on land many years ago
many years ago their were dinosaurs
Which is the first stage in a plant's life cycle?
The flowers develop into fruit.
The seed is dormant or resting; a baby plant is protected inside.
The plant has a stem to hold up the leaves.
The root emerges first. It soaks up water for the plant.
What makes food a fruit?
They grow only on trees.
They contain seeds.
They are all round.
They do not contain seeds.
Which of the following describes something that can help seeds disperse (move to different places)?
The wind
A squirrel
A mosquito
Water
A bird
When the seed begins to grow, why do the roots grow first?
to hold the plant still
to absorb food from the soil
to absorb water from the soil
so you can tell its growing
What are the TWO main functions of the roots?
to make seeds
to make food for the plant
to hold the plant in place
to take up nutrients and water from the soil
