Mia wants to find out how much mass a small rock has. Which tool should she use?

Leo needs to measure how long a leaf is. Which tool should he use?

Ana wants to find out how much water a cup holds. Which tool should she use?

Sam wants to see the tiny hairs on a caterpillar's back. Which tool should he use?

The class wants to find out how warm the water in a pan is. Which tool should they use?

Jack wants to know how long a toy car takes to roll down a ramp. Which tool should he use?

Two blocks are the same size, and Nia wants to know which one has more mass. Which tool should she use?

Priya wants to record how tall her bean plant grew this week. Which tool should she use?

Omar wants to find out which of two bottles holds more juice. Which tool should he use?

Ella wants to look closely at the tiny grains in a spoonful of sand. Which tool should she use?

Devon wants to find out whether the air outside is colder than the air in the room. Which tool should he use?

Kim wants to compare how long two spinning tops keep spinning. Which tool should she use?

Rosa finds the mass of an apple on a balance. Which unit does she use to report it?

Tom measures the water he poured into a graduated cylinder. Which unit does he use to report it?

Jade measures the length of her pencil with a ruler. Which unit does she use to report it?

The class reads the temperature of warm water with a thermometer. Which unit do they use to report it?

Ravi times how long an ice cube takes to melt. Which unit does he use to report it?

A student writes 42 g beside one of her rocks in her notebook. What did she measure?

The class measures the length of the long school hallway. Which unit fits that measurement best?

Ms. Lee's class will pour a liquid that can splash. What should the students do first?

Ben finds a white powder in a science lesson and wants to know what it is. What is the safe way to observe it?

A glass jar falls and breaks during an investigation. What should the students do?

The class heats water in a pan on a hot plate. What is the safe way to move the pan?

A glass thermometer is rolling toward the edge of the desk. What should a student do?

The class has just finished an investigation with soil and seeds. What should the students do last?

A student who spills water on the floor should leave it there and keep working.

A hand lens makes small things look bigger so they are easier to observe.

Ken can use a ruler to find out how much mass his rock has.

A student should ask the teacher before using a tool she has not used before.

Long hair should be tied back before an investigation that uses a hot plate.