Unit 1

Chad and Jane want to find out the height of the bubble layer in their jars. Chad measures the height from the bottom of the bubbles to the top of the bubbles. Jane measures from the bottom of the water to the top of the bubbles. How will the evidence they gather be different?

• Chad's measurement is smaller than it should be.

• Jane's measurement is smaller than it should be.

• Chad's measurement is larger than it should be.

• Jane's measurement is larger than it should be.

What is a bar graph used for?

• to look at data

• to easily compare groups or events

• to track numbers

• to share with others

What tool is used when finding the length of a pencil?

• a measuring cup

• a ruler

• a pan balance

• a graduated cylinder

If you want to see very tiny things in water, which tool is best?

• binoculars

• microscope

• hand lens

• telescope

Mark wants to measure the time it takes his son to run through an obstacle course. He will need to use a ______________.

Shane is interested in what different animals eat in the jungle. Which should he use in his investigation?

• a model of a cheetah

• a water cycle model of the jungle

• a table showing food for the animals in the jungle

• a chart of weather patterns for the jungle

What tool is this?

• Pinchers

• Grabbers

• Forceps

What does this tool measure?

• Mass in grams

• Volume in leaders

• Length in inches

Which is an inference about the car?

• There was a car crash.

• The car will be towed.

• A flat tire.

• Someone opened the door.

Scientists use the word investigate with the following meaning __________________________.

• Measuring objects

• Guess to find an answer.

• Use tool properly

• A planned way to find the answer to a question.