It's Giving Matter
What type of change occurs when ice melts into liquid water?
What is : Physical change
The number of protons in an atom of an element is its
What is : atomic number
A student tests how water temperature affects how fast sugar dissolves. What is the independent variable?
What is : Water temperature
Which tool measures temperature?
What is : Thermometer
_______ are the building blocks of life
Cells
A piece of paper is cut into smaller pieces. What type of change is this?
What is : A physical change
The positively charged particle
What is : A proton
A student tests whether different amounts of salt affect the temperature at which ice melts. Identify the IV and DV.
What is : IV: Amount of salt. DV: Temperature at which the ice melts
Fact or cap: All changes that produce bubbles are chemical changes.
Cap. Bubbles can also result from boiling or other physical processes.
What gas makes up 21% of Earth's Atmosphere?
Oxygen
Wood burns and turns into ash. Is this a physical or chemical change?
What is : Chemical change
What is the center of an atom called?
What is : nucleus
A student investigates whether the number of hours spent studying affects test scores. Identify the IV and DV.
What is : IV: Hours spent studying. DV: Test score
Which tool measures the volume of a liquid in a laboratory?
Graduated cylinder
In which state of matter do particles stay in one place and but still vibrate.
Solid
Your mom just baked a cake this is a :
What is : Chemical Change
The name of the current atomic model we use today
What is : Electron Cloud
What is the difference between an element and a compound?
What is : An element contains one type of atom; a compound contains two or more elements chemically bonded.
A glass bottle breaks into pieces. Explain why this is a physical change.
No new substance forms; only its shape and size change.
A scientist observes an element that has luster, conducts electricity, and is malleable. This element is a __________.
Metal
Name two clues that may indicate a chemical change has occurred.
Gas production, color change, temperature change, light production, or formation of a precipitate.
What are the vertical columns in the periodic table called?
What is : Groups
The smallest unit that makes up the known elements.
What is : A Atom
Fact or Cap ? Cooking an egg causes chemical changes.
Fact
What are the subatomic particles that make up an atom?
Protons, neutrons, and electrons