In what direction does heat flow when hot tea touches a cooler spoon?

What happens to water particles as the water's temperature rises?

What change of state is shown by the particle diagrams, read from left to right?

Warm liquid candle wax cools until it becomes solid. What is this change called?

A puddle gradually dries on a sunny day without boiling. What process changes its water into gas?

Water vapor in the air becomes droplets on the outside of a cold glass. What process occurs?

What is the name for a substance changing directly from solid to gas without becoming liquid?

Water boils in an uncovered pot without spilling. Why does the mass of the pot and its contents decrease?

A sealed container and its water have a total mass of 150 g. What will their total mass be after all the water freezes?

What state of matter is represented by the particle arrangement in the box?

Before gathering equipment, what should a group decide first when planning a science investigation?

What part of an investigation plan lists the cups, seeds, and soil to be used?

A class needs directions for setting up cups and watering seeds. What section of its investigation plan provides these?

Which information belongs in a report of an investigation's findings?

Liza notes that a pencil is brown by looking at it. What science process skill is she using?

Ben sees wet ground after hearing thunder and decides that rain probably fell. What science process skill does this show?

Ana places smooth rocks in one tray and rough rocks in another. What science process skill does she use?

Rico uses a ruler to find a pen's length in centimeters. What science process skill is this?

Using five days of seedling data, Mila states how tall a plant may be tomorrow. What science process skill is she using?

To test how soil type affects mung bean growth, what should happen to the amount of water given to each cup?

Use the investigation table. What cup had the tallest mung bean seedling on day 5?

What physical quantity tells how much matter is in a sack of rice?

What mass unit is most practical for recording a single serving of cooked rice?

What mass unit is most convenient for labeling a full sack of rice?

Arrange the units abbreviated mg, g, and kg from smallest to largest.

A rice bag has a mass of 5,000 g. What is its mass in kilograms?

A sample has a mass of 4 mg. Express its mass in grams.

A learner records '43' after weighing a stone. Which entry completes the measurement correctly?

At sea level, at about what temperature does pure water boil?

Read the graduated cylinder. What volume of water does it contain?

Which instrument measures mass by balancing an object against weights moved along marked beams?

Read the illustrated instrument. What is the rock's mass?

The pan is empty and all sliding weights are at zero, but the pointer is above zero. What should happen before adding a sample?

An empty 40 g beaker is tared on a balance. After water is added, the display reads 120 g. What is the water's mass?

A class needs to detect very small mass differences between samples of rice grains. What laboratory equipment is best suited to this task?

Which scale is best for weighing a 50 kg rice sack on a low platform rather than lifting or suspending it?

A body-temperature instrument is labeled from 35 °C to 42 °C. Why is it unsuitable for testing boiling water?

Read the liquid level on the °C scale. What is the water's temperature?

When checking water's temperature, where should a liquid-in-glass instrument's bulb be placed?

Air cannot be seen inside a sealed container. What two properties still make it matter?