Step 1: Ask a Question
Can be answered through
that involve experiments, ,
or surveys
investigations
observations
Step 1: Ask a Question Examples of Testable Questions
• The difference between a non-testable and a testable question
– testable questions are always about changing one variable to see what the effect is on another variable.
Step 1: Ask a Question
Non-Testable Questions
(lead to science reports)
Testable Questions
(lead to investigations)
How do plants grow?
• How does changing the amount of water affect the growth of tomatoes?
• How does changing the type of soil affect the growth of petunias?
• How does changing the amount of sunlight affect the growth of daffodils?
Step 1: Ask a Question
Non-Testable Questions
(lead to science reports)
Testable Questions
(lead to investigations)
What makes something sink or float?
• How does changing the type of fruit affect its ability to float in water?
Step 1: Ask a Question
How do rockets work?
• How does changing the shape of a rocket’s fins affect its ability to fly?
Non-Testable Questions
(lead to science reports)
Testable Questions
(lead to investigations)
Step 1: Ask a Question
Non-Testable Questions
(lead to science reports)
Testable Questions
(lead to investigations)
How does the sun heat up water? • How does changing the type of water affect its ability to absorb thermal energy from the Sun?