Unit 1 Lesson 3

Kiera is planning an investigation of fossils that scientists have found where she lives. Which would be her best source of information?

• science dictionary 
• book about dinosaurs
• local science museum
• television show about rocks

Michi places a beaker of water in sunlight and measures how the water temperature changes. Which unit of measurement will Michi use to record his data?

• grams
• centimeters
• degrees Celsius
• cubic centimeters

Students in Zoe’s class measure the time it takes a toy car to move along a track. Why should Zoe compare her data to other students’ data?

• to choose the best time to record
• to see if she needs to change her data
• to decide why the car moved slowly
• to see if her data match other students’ data

Lataya collects one leaf from each tree around the school. What would be the best way for Lataya to find out which leaf has the greatest mass?

• Hold the leaves, two at a time, in her hands.
• Find the mass of each leaf in a pan balance.
• Lay each leaf on a table beside a measuring tape.
• Hang all of the leaves together from a spring scale.

Shawna is studying two types of fish for a project. She draws pictures of the fish.Which is an observation Shawna might make of the fish?

• The boxfish has a funny shape.
• Most people have seen pictures of the clown fish.
• People will laugh when they see the boxfish picture.
• The clown fish has stripes around its head, body, and tail.