Matter
What is matter?
Anything that has weight and takes up space
What is a type of change in which a new substance is formed?
Chemical Change
All food originates from the ....
Sun
How much of Earth's water is in the ocean?
97%
What is the closest star to Earth?
According to the Law of the Conservation of Matter, if you dissolve 25 grams of sugar into 150 grams of water, the mixture should weigh how much?
175 grams
What is a type of change in which a new substance is NOT formed?
Physical Change
What has a variety of nutrients that help give us energy and provide building blocks to help us grow and repair?
Healthy Foods
List three places where fresh water can be found
lakes, ponds, rivers, puddles, ground water
What are stars made of?
What is it called when something dissolves into something else?
Solubility
Name an example of a physical change
Water boiling, cutting paper, dissolving salt in water, freezing water
What is a food web?
A food web is a model made of intersecting food chains.
Why is water quality important?
Many things depend on water for survival such as plants, animals and people. If the quality of water is poor, then people and animals wouldn’t be able to drink and plants wouldn’t grow. Clean water is essential for life!
What is the path an object follows as it moves around another one?
Earth moves in a circle around the sun once every 365.25 days
Earth's orbit
What is a property of matter that measures how well something can allow electricity to flow through it?
Conductivity
Which of these is the most reliable way to see if a new gas has formed?
a. Fill up a balloon b. Flame test
c. Measure temperature d. Look at it
Flame Test
What is a living thing that is no longer found alive anywhere on Earth today?
Extinction
What are the 3 main steps in the water cycle?
Evaporation, condensation and precipitation
How many time zones are there?
24 different time zones
If you were to weigh a car’s sealed air bag before and after it inflates the weight would …
a- increase c- stay the same
b- decrease d- be different
Stay the same
What type of change is mixing air into egg whites to make frosting?
Physical Change
What is a process by which plants use sunlight to make sugar from carbon dioxide and water?
Photosynthesis
What is water from rain or snow that flows over land before ending up in a body of water?
Surface runoff
What does a Heliocentric model say?
The sun is at the center of our solar system and everything orbits around it.