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Science Basics

Last updated over 6 years ago
6 questions
Note from the author:
Scientific Method
14

Decide whether each statement is an observation or an inference.

  • The boy is in the water.
  • The tree branch is broken.
  • If the boy got out of the pool, the dog would push him back in.
  • The dog is standing by the pool.
  • The branch will fall on the boy's head.
  • There is a boat in the water.
  • The boat belongs to the boy.
  • The boy will get out of the water soon.
  • The tree has no leaves.
  • There are 3 rocks by the pool.
  • The tree by the pool is dead.
  • If it rains, the tree will grow.
  • The dog pushed the boy into the pool.
  • The boy is having fun.
  • Observation
  • Inference
14

Decide whether each statement is an observation or an inference.

  • The bell is ringing
  • The flower has red petals.
  • The boy is crying, so I think he is sad.
  • The dog is going to burp.
  • There is a lot of red in the painting, so the artist must have been mad.
  • The cell phone is ringing.
  • The quiz is going to be easy.
  • The dog has 3 legs.
  • The kids who are smiling are happy.
  • My mom is angry.
  • All my homework is done.
  • The cat has its eyes closed so it must be dead.
  • The cat is on the table.
  • Observation
  • Inference
· Independent Variable (IV): What the experimenter changes during the experiment.
· Dependent Variable (DV): What the experimenter measures.
· Constants: Things that are kept the same.
1

Q: What week of the year has the most flowers blooming?
H: The second week in May has the most number of flowers blooming.
Procedure: Counts the number of flowers she sees on different types of plants. She records data every week. What is her independent variable?

1

Q: What week of the year has the most flowers blooming?
H: The second week in May has the most number of flowers blooming.
Procedure: Counts the number of flowers she sees on different types of plants. She records data every week. What is her dependent variable?

2

Q: What week of the year has the most flowers blooming?
H: The second week in May has the most number of flowers blooming.
Procedure: Counts the number of flowers she sees on different types of plants. She records data every week. What are her controls?

1

Q: Which type of water makes plants grow best?
Hypothesis: Regular water will make the plants grow best.
Procedure: You water some plants with 4 different types of water (salt water, regular water, sugar water and distilled water). After a two-week period, the height of the plants is measured.
What is your independent variable?