Vocabulary
Gap Fill
Germination
Fair Test Investigation
Mystery
50
when a seed starts to grow
germination
50
Seeds need water and ______ to germinate.
Seeds need water and warmth to germinate.
50
Match each word about how seeds grow with its description.
1. c
2. d
3. a
4. b
50
What is a dependent variable?
a. the one that is changed by the scientist
b. the one that we measure
c. the ones that we keep the same
b. the one that we measure
50
When a seed starts to grow, we say it _____. The seed uses its _____ to give it the energy to grow.
When a seed starts to grow, we say it germinates. The seed uses its food store to give it the energy to grow.
100
to become small and very dry
shrivels
100
When a seed starts to germinate it absorbs water and ______.
When a seed starts to germinate it absorbs water and swells.
100
Which part of the seedling grows first?
The first root grows first.
100
What is a independent variable?
a. the one that is changed by the scientist
b. the one that we measure
c. the ones that we keep the same
a. the one that is changed by the scientist
100
Arrange these processes in the correct order to draw a life cycle diagram for a plant:
fertilisation, seed dispersal, fruit and seed formation, pollination, germination
150
to take in a substance
absorb
150
There is a tiny plant inside the seed that starts to grow when _____ are right. The seed also has a ____ ____.
There is a tiny plant inside the seed that starts to grow when conditions are right. The seed also has a food store.
150
Where does the new plant inside the seed get its food from?
The new plant gets its food from the seed's food store.
150
What are the three kinds of variables used in a fair test investigation?
independent variable, dependent variable, controlled variable
150
What is a controlled variable?
a. the one that is changed by the scientist
b. the ones that we keep the same
c. the one that we measure
b. the ones that we keep the same
200
things that affect how something happens
conditions
200
Before the seed can start to grow, it needs _____. Germination starts when the seed takes in or _____ water.
Before the seed can start to grow, it needs water. Germination starts when the seed takes in or absorbs water.
200
Why does the new root grow downwards?
The new root grows downwards so it can absorb water and to anchor the new plant in the ground.
200
What was the independent variable in the think like a scientist 2 investigation when we planted lentil seeds?
The independent variable was the amount of water we gave the seeds.
200
Why do the new leaves start to grow above the ground?
The new leaves start to grow above the ground because they need light so they can make food for the plant.
250
when a seed absorbs water and gets bigger
swells
250
The seed _____ and becomes _____after germination.
The seed shrivels and becomes small after germination.
250
What conditions do seeds need to germinate?
Seeds need warmth, water and space to germinate.
250
What was the dependent variable in the think like a scientist 2 investigation when we planted lentil seeds?
The dependent variable was the number of seeds that germinated.
250
Why does the seed shrivel and becomes small after germination?
The seed shrivels and becomes small after germination because the food store gets used up during germination.
300
Fill in stages 2, 3 and 5 in the stages of germination
2. The seed coat splits.
3. The first root starts to grow downwards.
5. The first shoot starts to grow upwards.
300
What was the controlled variable in the think like a scientist 2 investigation when we planted lentil seeds?
The controlled variable was the amount and type of soil the seeds were planted in.
300
What type of scientific inquiry did we use when we soaked the bean seed in water overnight? Why was this type of scientific inquiry suited to this investigation?
We used observing over time type of scientific inquiry. We had to wait overnight to see any changes in the seed.