A class measures how long a bean leaf is from stem to tip. Which tool should they use, and what unit should they record?

Luis wants to compare how heavy two dry rocks are. Which tool should he use, and what unit should he record?

A team needs to find how much liquid a small cup holds. Which tool should they use, and what unit should they record?

Before starting an investigation, a student needs to measure how warm the classroom is. Which tool and unit match this measurement?

A toy car rolls down a ramp, and the class needs to know how long the trip takes. Which tool and unit should they use?

Nora notices tiny lines on a butterfly wing and wants to observe them more closely. Which tool should help her make that observation?

Students cut a strip of tape for a model and need its length. Which tool and unit should give the data they need?

A group wants to find the mass of a soil sample before adding water. Which tool and unit should they use?

The class pours water into a container and needs the liquid volume. Which tool and unit should they use?

A plant investigation compares cool and warm water. Which tool and unit should students use to measure the water temperature?

Marbles roll across the floor. A timer shows one marble's roll lasted 4 seconds and another marble's roll lasted 7 seconds. Which statement do the data support?

A student wants to compare the shapes of sand grains that are too small to see clearly. Which tool should the student use?

A metric ruler is placed along a crayfish drawing in a notebook. What measurement does the ruler give, and in what unit?

A balance is used after a dry shell is placed on its pan. What measurement does the balance give, and in what unit?

A graduated cylinder is used during a water investigation. What measurement does this tool give, and in what unit?

A Celsius thermometer sits in a cup of water. What measurement does the thermometer give, and in what unit?

A timing device is used while a paper spinner falls. What measurement does the timing device give, and in what unit?

A metric ruler is used during a toy car test. What measurement does it give, and in what unit?

A balance is used to compare two clay balls. What measurement does it give, and in what unit?

Water from a bottle is poured into this graduated cylinder. The cylinder fills to its top mark, but some water is still left in the bottle. What should the students do to measure all of it?

A thermometer is placed in soil near a lamp. What measurement does it give, and in what unit?

A stopwatch is used during a seed-rolling test. What measurement does it give, and in what unit?

A metric ruler is laid across a leaf. What measurement does the ruler give, and in what unit?

In a fair test, each cup needs the same amount of colored water. How can students make sure every cup gets the same amount?

A student pours water into a cup, puts the cup on a balance, and says the liquid volume is 80 grams. What went wrong?

Jada uses a metric ruler to find how heavy a rock is and records centimeters. What went wrong?

A group uses a Celsius thermometer to learn how long ice takes to melt. Their data are in degrees Celsius. What went wrong?

A student uses a graduated cylinder to measure a leaf from base to tip. The data are milliliters. What went wrong?

After using a thermometer, a student writes the room measurement in grams. What went wrong with the data?

Leo studies a seed with a hand lens, then records its mass as large. What went wrong?

A student starts a timer, pours water into a container, and records 12 seconds as the liquid volume. What went wrong?

A student measures a worm's length with a ruler but writes the answer in milliliters. What went wrong?

A pencil is shorter than the ruler. What step helps a student get a trustworthy length measurement?

Students read water in a graduated cylinder. What step helps them get a trustworthy liquid volume measurement?

A balance pointer keeps moving after a rock is placed on the pan. What step helps make the mass reading trustworthy?

A thermometer is placed in warm water. What step helps students get a trustworthy temperature reading?

Students time a marble rolling from the start line to the finish line. What step helps make the time data trustworthy?

A student uses a hand lens to observe a beetle shell. What step helps make the observation trustworthy?

A student measures a ribbon with a metric ruler. What step helps keep the length measurement trustworthy?

A class measures liquid volume in a graduated cylinder after pouring water. What step should they take before reading the scale?