Which box represents a substance with a definite volume that takes the shape of its container?

An ice cream cone becomes a puddle on a warm afternoon. What change has occurred?

Water vapor changes directly into ice crystals on a freezer wall. What is this process called?

A solid mothball gradually becomes vapor without forming a liquid. Which process explains this?

Which change releases heat to the surroundings?

Pure ice at 0 °C is becoming liquid water at normal air pressure. What happens to its temperature while both forms remain?

A sample becomes warmer without changing state. How does the average motion of its particles change?

Liza crushes a sugar cube into smaller grains. How should she classify this change?

An iron nail develops reddish-brown rust after exposure to moist air. How is this change classified?

Which observation best supports classifying burning paper as a chemical change?

Salt dissolves completely in water and spreads evenly throughout it. How is the resulting mixture classified?

What role does water have when a small amount of sugar dissolves in it?

Fine sand is stirred into water and later settles at the bottom. Which kind of mixture was formed?

Which gas makes up the largest share of dry air?

Which statement about oxygen is scientifically correct?

Which separation method is illustrated?

Which labeled part lets smaller particles pass while holding back larger pieces?

A farmer tosses rice grains and husks in a breeze so the lighter husks blow aside. What technique is being used?

How can a salt maker recover dissolved salt from seawater?

Which tool can remove iron filings from ordinary dry sand?

Name the technique shown as liquid is carefully poured away from settled material.

Ana compares how quickly equal amounts of salt dissolve in warm and cool water. Which variable is independent?

Paolo compares ink drying on paper and cardboard. Which measurement is the dependent variable?

A class compares two propagation methods using similar sampaguita plants. Which difference between groups should it avoid for a fair test?

Two equally treated sampaguita plants grow differently after the same propagation method. What should the class do before judging whether the method usually works?

Which board represents high precision but low accuracy?

Which labeled chamber pumps blood through the aorta to the body?

Which blood component clumps together to form the first plug at a damaged blood vessel?

In which vessels do oxygen and nutrients pass from blood to nearby body cells?

What do valves in the heart help prevent?

Why does Miguel's pulse usually rise after jumping for one minute?

What is the main job of part A?

After fertilization, which structure develops into a seed?

Which direction of pollen transfer can begin sexual reproduction in a flowering plant?

Rosa removes a healthy lagundi stem section and plants it so it develops roots. Which technique does she use?

What is plant part 2 called in this sequence?

Which propagation technique is shown in the sequence?

How is a catfish, or hito, classified based on its internal body support?

To which major animal group does a bat belong?

An earthworm has a soft, elongated body divided into repeated sections. Which invertebrate group includes it?