Science 3
Presentation
•
Science
•
3rd Grade
•
Easy
Michelle Diaz
Used 6+ times
FREE Resource
23 Slides • 11 Questions
1
Science 3
2
3
4
Open Ended
Solid with round shape
5
Open Ended
Solid with smooth texture
6
Open Ended
Breakable solids
7
Open Ended
Unbreakable solids
8
Open Ended
Solid of plastic materials
9
10
In solid, the molecules are held firmly by the force of attraction between them. The molecules in solids move through vibration and they are very close to each other
11
Examples of solids are stone, wood, pencil, scissors, book, chair and bag
12
13
A. Hardness is the property of solid to resist scratching or abrasion.
14
B. Malleability is the ability of materials to be pressed, hammered, or rolled into various shapes and sizes without breaking
15
C. Brittleness is the tendency of a material to be easily broken into pieces.
16
D. Elasticity is the property of solid materials to be stretched when pressure is applied on them.
17
E. Strength Metals are used to construct buildings, bridges, and roads because they are very strong
18
Open Ended
How do you describe a solid object?
19
Multiple Select
20
Liquid
21
Liquids
Compare to molecules of solids, the molecules in liquids are farther apart from each other. The force of attraction among the molecule is weak. They always move, roll, or bump each other.
This is the reason why liquids can change shape. Liquids take the shape of their container.
22
23
1. Liquids have definite volume but no definite shapes.
24
2. Liquids expand when heated. Their molecules move faster and the space between the molecules increases. When the liquids are cooled they contract.
25
3. Liquids may dissolve some solids. When sugar is placed in water. It melts or dissolves. Sugar breaks up in the water and spread out.
26
4. Some liquids, like water, flow easily. Other liquids like oil flow very slowly. Liquids that flow very slowly are described as viscous.
Viscosity is the resistance of a liquid to flow. This is because the molecules in viscous material are strongly attached to each other.
27
28
Gases
In gases, the molecules are farther apart compared to those liquids. The molecules bounce off and move in every direction. The force of attraction between the molecules is too weak to hold them close.
29
Multiple Choice
30
Multiple Choice
31
Multiple Choice
32
Multiple Choice
33
34
Science 3
Show answer
Auto Play
Slide 1 / 34
SLIDE
