what you decide after you think about all you know
conclusion
100
asking questions and looking for answers
inquiry
100
to use your senses to find out about something
observe
100
a possible answer to a question
hypothesis
100
something that is used to do work
tool
200
what you observe
data
200
materials plants need from soil
nutrients
200
to tell what you think will happen next
predict
200
to look for answers
investigate
200
a way to organize data
chart
300
a way to compare data
bar graph
300
What are three things scientists may ask questions about?
possible answers: plants, animals, rocks, soil, space
300
What did scientists do to grow plants without soil?
They identified the nutrients the plants got from soil and added them to water. They put the roots of the plants in the water.
300
Why do scientists do the same experiements over and over again?
Scientists want to see if they get the same results.
300
What might you observe if an apple tree was not healthy?
Possible answer: The tree might have fewer leaves or brown leaves. It might not have many apples.
400
What do scientists do when they compare and contrast?
They observe how things are alike and different.
400
Suppose that you are a scientist who studies flowers. Name five different ways that you could classify flowers.
Possible answers: Number of petals, color, height, where they grow, how much sun/water they need, the shape of the leaves/petals
400
Why is it important to never taste or smell materials?
Possible answer: some materials may be hot or may make you sick
400
Why do scientists repeat their investigations?
They want to reach a reliable conclusion.
400
Is a hypothesis always correct? Explain.
No, a hypothesis may be wrong. A hypothesis is a possible answer to a question. Scientists test a hypothesis to find out whether it is correct.
500
A scientist wants to investigate how much water a plant needs each day. What should the scientist do to find out?
Possible answer: The scientist should measure how much water he or she gives each plant each day, record observations, and tell the conclusion.
500
How does a bar graph help a scientist make comparisons?
Possible answer: A bar graph shows how much more one thing has than another.
500
What are the scientific method steps?
ask a question, make your hypothesis, plan a fair test, do your test, collect and record your data, tell your conclusion
500
Write a plan to investigate plants.
Possible answer:
-Ask a question-Do seeds need water to grow?
-Make your hypothesis-If seeds are watered, then they will grow because seeds need water.
-Plan a fair test-Use the same kinds of pots and soil. Water only one pot.
-Do your test
-Collect and record your data
-Tell your conclusion-Seeds need water to grow
500
Suppose that you have an apple in your hand. What data could you collect about that apple?
Possible answer: You could collect data about its color, shape, weight/mass, size, hardness, sweetness, and scent.