Engineering
Sam wants to build a bookcase for his bedroom. He drew a plan of each self. Each self is 1 inch tall. Why will he need to improve his design?
Most books are taller than 1 inch.
Which has a greater force? A dog pulling a wagon or a truck driving down a highway?
A truck driving down a highway.
What force pulls objects toward Earth?
gravity
What does a plant need to reproduce?
seed
What happens first when a fossil forms?
A living thing dies and is buried by mud.
Vince wants to make a car engine. The engine gets hotter than 240 degrees Celsius, C. Vince studies materials that he could use. Potassium 64 degree Celsius, Plastic 120 degree Celsius, Tin 232 degrees Celsius, and Aluminum 600 degrees Celsius.
Which material should Vince use?
Aluminum
What happens if you put the same poles of two magnets together?
The magnets repel each other
Tony watched the animals on a small carousel go around in a circle. There are only 4 animals on the carousel. He writes down what he sees: lion, bear, horse, duck. What animal will Tony likely see next?
lion
A pine tree has cones. A peach tree has flowers. What is a difference between the two trees?
The seeds are different.
How long do fossils take to become a fossil?
thousands to millions of years.
Ben builds a paper bridge for a toy car to roll down it. He decides to add more paper to the road part of the bridge. Why will adding more layers of paper help the bridge design?
It makes the bridge stronger.
How does an electromagnet work?
works when electricity is on
Two identical dogs run in different directions. Both dogs move at 3 meters per second. What is different about the forces on these two dogs?
Direction of force
Which part of an animal is most likely to become a fossil?
What might a scientist learn from a dinosaur fossil?
Where the dinosaur was living and the climate.
Designers often work with other people. Why is working with others helpful in design?
There are more new ideas to think about.
Two dogs are the same size and strength but act in opposite directions. Which of these forces describes the forces of the two dogs?
a) net forces
b) contact forces
c) balanced forces
d) unbalanced forces
balanced forces
Caleb will walk to Steve's house. Which of these does Caleb do first?
Ask Steve the position of his house.
Can the soft parts of an animal be saved in a fossil? IF yes, what type.
Yes, in amber or ice.
Adma found a rock with a fossil shaped like a clam shell. What conclusion can Adam make from the find?
the rock formed underwater.
An engineer designs and plans to test of prototype. The data shows that it is not working. What will the engineers do next?
Improve the design and test it again.
The class wants to build a metal board game. One student made wooden game pieces to put on the board. The student wants them to stick without falling off. The pieces also need to be easily removed. How should the class attach the game pieces?
Magnets
Which swings in a circular pattern, a child on a swing or the hands on a clock?
Hands on a clock
What happens to a tree when it is fossilized?
turns to petrified wood.
Fossils of wooly mammoths and saber-toothed cats have been found in the same rock layer. Which conclusions can be made from these fossils?
They lived at the same time.