Chemical Reactions
What gas is created when baking soda reacts with vinegar?
Carbon dioxide
What kind of change happens when water freezes?
Physical
Which of the following absorbs heat?
Endothermic reaction
What is force?
A push or pull
What safety device keeps you from moving forward in a crash?
Seatbelt
Which of the following is a sign of a chemical change?
Bubbling
When temperature increases during a reaction, it may be:
A chemical reaction
What is the role of properties in a chemical reaction?
They predict behavior
What increases as a car moves faster?
Force
Which of these helps absorb force in a car crash?
Airbags
A chemical change results in:
A new substance
What shows that a gas has formed during a reaction?
Bubbles
Which chemical reacts with vinegar to create fizz?
Baking soda
What does friction do?
Slows things down
What helps protect your head during an accident?
Helmet
What is a chemical property?
How it reacts with other substances
Which of the following is an example of a chemical reaction?
Burning wood
When temperature increases in a reaction, it is a sign of:
Chemical reaction
Which force keeps moving objects in motion unless something stops them?
Inertia
What weather condition can reduce tire grip?
Snow
In a chemical reaction, mass is:
Conserved
What is true about all chemical reactions?
They form new substances
Bubbles, color change, and temperature change are all:
Signs of a chemical change
Which safety habit is based on Newton’s Laws of Motion?
Using seatbelts
What part of a car absorbs crash energy?
Crumple zone